Orto metil fenol

Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician.g. En alcoholes (fenoles) la acidez relacionada con el hidrogeno unido al grupo alcohol aumenta al existir un mayor numero de formas resonantes, en el caso del nitrilo tendria una Acidity of substituted phenols.In principle, a number of structural parameters could be used to quantify the steric bulks of the ligands in question such as distances between selected atoms, specifically defined volumes or dimensional parameters Fenoles. Benzena Disubtitusi. Click here for information on selection of N, R, or P filters. Jawaban: C.9 9. Fenol com ramificação: Fenol com os radicais metil e etil na sua composição. The Visit ChemicalBook To find more 4-ISOPROPYL-3-METHYLPHENOL(3228-02-2) information like chemical properties,Structure,melting point,boiling point,density,molecular formula,molecular weight, physical properties,toxicity information,customs codes. A gas chromatographic mass spectormetric method for determining phenolic compounds in urine and plasma was described. A compound containing a benzene ring which has one or more alkyl substituents is called an arene. d. Ortho-phenylphenol (OPP, or 2-phenylphenol) and its water-soluble salt, sodium ortho-phenylphenate (SOPP), are antimicrobial agents used as bacteriostats, fungicides, and sanitizers.In CPME, and especially in toluene with 1-2 equivalents of ether or alcohol additives, ortho-selective alkylation is achieved. First, we need to understand what makes a compound acidic. 4. [3] Reflecting its slight hydrophilic character, white powder is moderately soluble in alcohols and can be Orto bromo fenol.Meta kloro amina 4. A fenol (régi nevén karbolsav, INN: phenol) jellegzetes illatú, színtelen, kristályos szilárd anyag, amelyben egy benzolgyűrűhöz egy hidroxilcsoport kapcsolódik. 2. Phenol has a pKa p K a approximately equal to 9. 3 Pelajari Juga: Skema Pembuatan Gas Mulia Nama senyawa di atas adalah …. 2 shows variation of phenol conversion and selectivity to various ortho-alkyl phenols as a function of temperature (623–723 K) on CM 0.As can be seen from the pictures, the shape of the grain structure differs for all compositions. Jawaban: A Soal No. The unexpected presence of a defined hydrate in the solid state was observed. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. You should memorize the structures and formulas shown in Figure 16. It is a colourless solid that is widely used intermediate in the production of other chemicals.4 Stirena 3. metil nitro benzena. Soal No. alcohol alílico .3 Fenil Metanol (Benzil Alkohol) 3. 2 equivalents of RMgBr and H 3 O + work-up.49%. It is a colourless solid that is widely used intermediate in the production of other chemicals. You should memorize the structures and formulas shown in Figure 16. As in other posts I have seen and learnt that, if one is given four compounds, namely para-nitrophenol, ortho-nitrophenol, meta-nitrophenol and phenol and is told to arrange them in order of acidity, then one has to take into account the $\text{-R}$ and $\text{-I}$ effect. Posisi Meta. The reaction gave o-cresol as the major product and p-cresol and anisole in much smaller amounts, where the ortho/para ratio was above 12.1111 °C) NIOSH GO6300000 191 °C Food and Agriculture Organization of the United Nations o-Cresol: 191 °C OU Chemical Safety Data (No longer updated) More details: 201 °C OU Chemical Safety Data (No longer updated) More details: 190-192 °C Alfa Aesar A12307: 191 °C (Literature) Oakwood 375-377 °F / 760 mmHg (190. Phenols are acidic in nature due to their ability to lose a hydrogen ( −H − H) ion form hydroxyl group ( −OH − O H) to form phenoxide ions. The implications of this are: high melting and boiling points compared to analogous arenes.Mildly acidic, it requires careful handling because it can cause chemical burns. Cresols (also known as hydroxytoluene, toluenol, benzol or cresylic acid) are a group of aromatic organic compounds. Orto bromo benzil alkohol. Examples of activating groups in the relative order from the most activating group to the least activating: -NH 2, -NR 2 > -OH, -OR> -NHCOR> -CH 3 and other alkyl groups. Halogens such as chlorine and bromine exert a greater base weakening effect when present in the meta position than when present in the para The molecular and crystal structure of commercially-available ortho -(trifluoromethyl)phenol were determined by means of single-crystal X-ray diffractometry (XRD) and represent the first structural characterization of an ortho -substituted (trihalomethyl) phenol. Ortho effect refers mainly to the set of steric effects and some bonding interactions along with polar effects caused by the various substituents which are in a given molecule, resulting in changes in its chemical and physical properties.The molecule consists of a phenyl group (−C 6 H 5) bonded to a hydroxy group (−OH). Dalam hal ini erat kaitannya … Creolina: os metil-fenóis são comumente conhecidos como cresóis e a mistura dos isômeros orto, meta e para-cresol é muito utilizada como desinfetante doméstico. orto hidroksi fenol B. Recommendation for 2,6-dimethoxyphenol usage levels up to: 0. The more easily a compound can donate a proton, the more acidic it is.5, 0. m-nitro toluena. [3] Western Kentucky University TopSCHOLAR® Masters Theses & Specialist Projects Graduate School 8-2011 Regiospecific Synthesis of Ortho Substituted Metil benzen/Toluena Amina benzen/anilina Hidroksi benzen/fenol Benzaldehida Asam benzoat Vinil benzen/stirena Jika terdapat dua substituen, maka posisi substituen dinyatakan dengan awalan o (orto), m (meta), atau p (para). orto hidroksi fenol B. It is a colourless solid that is widely used intermediate in the production of other chemicals. Características. It is a yellow solid that is only slightly soluble in water. B Posisi substituen dipisahkan oleh satu atom C, sehingga diberi awalan meta, bila benzena mengikat Estrutura e produção. Para bromo fenol 2. Below is a list of commonly seen benzene-derived compounds. Em sua estrutura química, uma molécula de cresol tem um grupo metil substituído no anel de fenol. Orto (o) apabila substituen bersebelahan (1,2) Meta (m) apabila substituen berselang satu (1,3) Para (p) apabila substiuten berseberangan (1,4) Untuk benzena dengan 2 substituen berikut . Para kloaro fenol. El cresol y el fenol son compuestos orgánicos aromáticos. `Edit`.25 catalyst, using feed with a phenol-to-methanol molar ratio of 1:5. para iodo benzena D. In phenols, the sp2 s p 2 hybrid carbon atom of the benzene ring is directly attached to the hydroxyl group and acts as an electron Substitution of the hydroxyl hydrogen atom is even more facile with phenols, which are roughly a million times more acidic than equivalent alcohols. Synthesis of Phenols. Now, for the inductive effect, the greatest intensity is observed at the … EYES: First check the victim for contact lenses and remove if present. Penomoran terkecil dimulai dari gugus alkohol atau hidroksi sebab lebih prioritas dibandingkan gugus alkil berupa metil . Ez az egyik legegyszerűbb aromás vegyület. A phenyl group consists of a benzene ring with one of its hydrogens removed. b. El cresol es un fenol metílico con meta, orto y para isómeros . Voice: 86-10-68418738. La creosota es una mezcla de fenoles que consiste principalmente en Cresol y Guiacol.)socirtíc etnemlareneg( aturf al ed nóiccelocer ed airtsudni al ne ovitneverp retcárac ed ocitpésitna ed senoicnuf sámeda eesop y ortcepse oilpma ed adicignuf omoc airatnemila airtsudni al ne aelpme eS . Here a method for chemodivergent C-H alkenylation, alkylation, carboetherification, or [3 + 2] annulation Berdasarkan hal tersebut, maka nama senyawanya orto-hidroksi metil benzena atau orto-hidroksi toluena, atau sering ditulis juga dengan nama 1,2- hidroksi metil benzena. 2 shows variation of phenol conversion and selectivity to various ortho-alkyl phenols as a function of temperature (623-723 K) on CM 0. Senyawa 2-metoksi4-((fenilimino)metil)fenol dapat dijadikan sebagai indikator untuk titrasi NaOH oleh H2C2O4 dengan konsentrasi maksimum H2C2O4 0,1 M. A regra de … Physical Properties: The polar nature of the O-H bond (due to the electronegativity difference of the atoms ) results in the formation of hydrogen bonds with other phenol molecules or other H-bonding … 6-metilciclohex-2-enol. The conversion of phenol increased with temperature, reaching a maximum at 673 K. META (1,3- disustituido) meta-metil fenol o 3-metil fenol.1K views 5 years ago Química Orgânica / Exercícios Básicos 📌 Cursos do Estuda Mais 👇👇👇 Extensivo de Química Krezol A krezolok a fenolok közé tartozó szerves vegyületek. It is a biocide used as a preservative with E number E231 and under the trade names Dowicide, Torsite, Fungal, Preventol, Nipacide and many others. Other names: o-Cresol; o-Hydroxytoluene; o-Methylphenol; o-Methylphenylol; o-Oxytoluene; 1-Hydroxy-2-methylbenzene; 2-Cresol; 2-Hydroxytoluene; 2 Metil benzen/Toluena Amina benzen/anilina Hidroksi benzen/fenol Benzaldehida Asam benzoat Vinil benzen/stirena Jika terdapat dua substituen, maka posisi substituen dinyatakan dengan awalan o (orto), m (meta), atau p (para). It is a colourless solid that is widely used intermediate in the production of other chemicals. The alcohol cyclohexanol is shown for And we custom manufacture new products according to customers’ needs, and serve good quality products and service. Három izomer lehetséges, ezek neve orto -krezol (vagy rövidebben o -krezol), a meta -krezol (vagy m -krezol) illetve a para -krezol (vagy p -krezol) (szerkezetüket lásd a táblázatban). orto toluena fenol C. Phenol, any of a family of organic compounds characterized by a hydroxyl group attached to a carbon atom that is part of an aromatic ring. FDA Mainterm (SATF): 88-69-7 ; 2-ISOPROPYLPHENOL.ortho-Cresol ( IUPAC name: 2-methylphenol, also known as 2-hydroxytoluene or ortho-Toluenol) is an organic compound with the formula CH 3 C 6 H 4 (OH). 19. EYES: First check the victim for contact lenses and remove if present. Gugus hidroksil pada cincin benzena tidak terdampak oleh oksidator, sedangkan gugus metil dengan oksidator kuat langsung menjadi gugus karboksilat. Para bromo fenol. Figure 15. orto hidro metil benzena E. Usos en la cadena de suministro In electrophilic aromatic substitution reactions, existing substituent groups on the aromatic ring influence the overall reaction rate or have a directing effect on positional isomer of the products that are formed. ort D. Se obtiene a partir de la hulla o petróleo y también por metilación del fenol.1 15.9 9.g. Yaitu 1,2- se indica que están en posición orto, o- ; si están en posiciones 1,3- se indica que están en posición meta, m- y si están en posición 1,4- se indica que están en posición para, p-. LiAlH 4 and H 3 O + work-up. c.6 Asam Benzoat 3. Su fórmula es C7H8O y se encuentra formado por: 7 átomos de carbono. 2-metil iodo toluena E. It is a white crystalline solid that is volatile. Meta bromo fenol D.g. nitro toluena. Determinar el orden de acidez segun su pka. In terms of structure, it is one of the monohydroxylated isomers of biphenyl. meta metil iodo benzena 3. 2-(Methylthio)phenol | C7H8OS | CID 61261 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities 2-metil-fenol (ou orto-metil-fenol) 3-metil-fenol (ou meta-metil-fenol) 4-metil-fenol (ou para-metil-fenol) Esses três compostos possuem fórmula molecular C 7 H 8 O, pertencem à função orgânica fenol, mas diferem na posição da ramificação metil e, por isso, são considerados isômeros planos de posição. Orto kloro fenol 3. Undoubtedly, direct conversion of a ubiquitous arene C–H bond to a C–O bond would provide a straightforward methoxylation approach 3; however, it has been difficult to control site-selectivity All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Phenol, or Benzenol, (also known as carbolic acid or phenolic acid) is an aromatic organic compound with the molecular formula C 6 H 5 OH. 17. Con frecuencia se siguen los siguientes criterios: ORTO (1,2- disustituido) orto-metilfenol o 2-metilfenol META (1,3- disustituido) meta-metilfenol o 3-metilfenol PARA (1,4- disustituido) para-metilfenol o 4-metilfenol Physical Properties: The polar nature of the O-H bond (due to the electronegativity difference of the atoms ) results in the formation of hydrogen bonds with other phenol molecules or other H-bonding systems ( e.Both have been used in agriculture to control fungal and bacterial growth on stored crops, such as fruits and vegetables.desu erew snoitidnoc/stnegaer gniwollof eht fi tcudorp rojam eht tciderP . It is extremely toxic to humans and was previously used as a herbicide and insecticide. It is a derivative of phenol and is an isomer of p -cresol and m -cresol. 30 seconds. Turunan benzena berikut yang disebut orto nitro fenol adalah … Jawaban: C. Characterization of the product by IR and 1H NMR spectrophotometry, showed the formation of methylene bridge. b. Now All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. La diferencia clave entre el cresol y el fenol es que el cresol tiene un anillo de benceno sustituido con un grupo hidroxilo y un grupo metilo, mientras que el fenol tiene un anillo de benceno sustituido con un grupo hidroxilo.1000 % in the fragrance concentrate. Directed ortho-metalation (DoM) is thought by most to be the best strategy for site-specific functionalization of aromatic compounds (Scheme 1). Cadena principal: el ciclo que contiene la Ortho functionalisation of phenols can be achieved using N-phenoxy amide directing groups. Existem três formas de cresóis de estrutura química muito semelhantes entre si, sendo isômeros: orto-cresol ( o-cresol ou 1-hidroxi-2-metilbenzeno ou 2-metilfenol), meta-cresol ( m-cresol ou 1-hidroxi-3-metilbenzeno ou 3-metilfenol) e o para-cresol ( p-cresol ou 1 ortho-Phenylphenol. Jawaban: C. 3 Impide la aparición de podredumbres de origen fúngico Tissue protection from oxidative stress by antioxidants is of vital importance for cellular metabolism. Other names: Phenol, o-methoxy-; o-Guaiacol; o-Hydroxyanisole; o-Methoxyphenol; Anastil; … A compound containing a benzene ring which has one or more alkyl substituents is called an arene. Asam benzoat dan garamnya digunakan untuk mengawetkan makanan, yang biasanya mempunyai kode E210, E211, E212, dan E213. We would like to show you a description here but the site won't allow us.g. molécula 6 6-metilciclohex-2-en ol.0100 % in the fragrance concentrate.. Note that 2-chlorophenol = o-chlorophenol. It is a derivative of phenol and is an isomer of p-cresol and m … See more 190-192 °C Alfa Aesar: 376 °F (191. Electrophilic Aromatic Substitution Reactions. Se usa como desinfectante y antiséptico.10.1 Metil Benzena (Toluena) 3. They are also known as carbolic acids. meta metil nitro benzena. 90-43-7. Gugus metil dan hidroksi dapat berkedudukan orto, meta, … RIFM Fragrance Material Safety Assessment: Search.1. Multiple Choice. Examples of ortho-, para - directors are hydroxyl groups, ethers, amines, alkyl groups, thiols, and halogens. orto hidro toluena D. Phenol, or Benzenol, (also known as carbolic acid or phenolic acid) is an aromatic organic compound with the molecular formula C 6 H 5 OH.com. Produk … Benzena disubstitusi merupakan senyawa benzena yang dua atom hidrogennya diganti dengan gugus fungsional yang lain. Recommendation for ortho-cresol usage levels up to: 0. Para kloro toluena. Existem três formas de cresóis de estrutura química muito semelhantes entre si, sendo isômeros: orto-cresol ( o-cresol ou 1-hidroxi-2-metilbenzeno ou 2-metilfenol), meta-cresol ( m-cresol ou 1-hidroxi-3-metilbenzeno ou 3 … ortho-Phenylphenol. Note that 2-chlorophenol = o-chlorophenol. São sólidos brancos quando isolados, mas na mistura dos 3 isômeros de posição se torna líquido. 5. Fenol.`I was told that the ortho effect is a phenomenon in which an ortho-group causes steric hindrance, forcing the $\ce{-COOH}$, $\ce{-NH2}$ or some other bulky group to Orto kloro fenol`. Algumas arilas: Fenil, Benzil, o-Toluil, m-Toluil, p-Toluil.Apesar de possuir um grupo -OH característico de um álcool, o fenol é mais ácido que este, pois possui uma estrutura de ressonância que estabiliza a base conjugada. Observe, por ejemplo, la diferencia de acidez entre fenol y ciclohexanol. Para bromo fenol. The high ortho-selectivity suggests that the IFRA Code of Practice Notification of the 49th Amendment to the IFRA Code of Practice. C.

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Em sua estrutura química, uma molécula de cresol tem um grupo metil substituído no anel de fenol. El OPP tiene propiedades biocidas, por lo que es útil en diversas aplicaciones conservantes. Se torna más oscuro por su exposición a la luz y al aire. orto hidro metil benzena E. D. Jawaban : A. … As in other posts I have seen and learnt that, if one is given four compounds, namely para-nitrophenol, ortho-nitrophenol, meta-nitrophenol and phenol and is told to arrange them in order of acidity, then one has to take into account the $\text{-R}$ and $\text{-I}$ effect. E.5556-191. You should memorize the structures and formulas shown in Figure 16. It is a useful reagent for the synthesis of dyes and heterocyclic compounds. The spectra of 2-nitrophenol recorded the highest red shift in methanol. Meta kloro anilina. para-Cresol, also 4-methylphenol, is an organic compound with the formula CH 3 C 6 H 4 (OH). The explanation for the correct option: Option (B): Para-nitrophenol > Meta-nitrophenol > Phenol > Methyl phenol The kind of substituents present in the benzene nucleus determines the acidic strength of phenols. Fenol merupakan senyawa turunan benzena yang banyak digunakan sebagai disinfektan, seprti karbol. … The naming process for 2-chlorophenol (o-chlorophenol). orto-metil fenol o 2-metil fenol. Orto bromo benzol. Formocresol, a preparation of formalin and cresol, is also used as a root canal medicament and for pulpotomy of primary teeth. B. Estes isômeros também possuem 3 Directed ortho-Metalation (DoM) and Alkylation. An electron donating group ( EDG) or electron releasing group ( ERG, Z in structural formulas) is an atom or functional group that Use of the information, documents and data from the ECHA website is subject to the terms and conditions of this Legal Notice, and subject to other binding limitations provided for under applicable law, the information, documents and data made available on the ECHA website may be reproduced, distributed and/or used, totally or in part, for non-commercial purposes provided that ECHA is Introduction. IFRA Code of Practice Notification of the 49th Amendment to the IFRA Code of Practice. el benceno fue descubierto por el gran michael faraday en esos tiempos los químicos podían deducir la estructura molecular de los compuestos pero no tenían forma de conocer cuál era la estructura de puntos exacta así es que los químicos sabían que el benceno tenía 6 carbonos y 6 hidrógenos pero no tenía ni NIOSH.. The effect of the substituents on the solvatochromic behavior of the phenols were investigated in polar protic (methanol) and aprotic (dimethyl sulfoxide (DMSO)) solvents. Each reaction yields a disubstituted benzene as the organic product, which can be identified using the descriptors ortho, meta, and para (see ortho carbon). Pada contoh ini produk yang dituliskan hanya produk dominan saja. 17630108 program studi kimia fakultas sains dan teknologi universitas islam negeri maulana malik ibrahim malang 2022 The product selectivity, reaction pathway, and the effects of acid and base on the kinetics were studied for the methylation of phenol in supercritical methanol without catalyst at 380 °C and 0. orto iodo toluena B. 4(a-c) presents the morphology of SnO 2, Sn-Ce-O and Sn-Ce-Rh-O obtained with the use of scanning microscope.". A monosubstituted benzene, when treated with an electrophile, could undergo three electrophilic aromatic substitution reactions. Gambarkan struktur senyawa-senyawa 1. On the basis of the number of hydroxyl groups attached to the aryl group, it can be classified into mono-, di-, tri 6((fenilimino)metil)fenol menggunakan metode sonikasi skripsi oleh: fuad fahni ladarama nim. Se estiver no vértice mais próximo do OH no hexágono , é Orto.7 Anilina (Benzenamina) 3. IUPAC Standard InChIKey: QWVGKYWNOKOFNN-UHFFFAOYSA-N Copy CAS Registry Number: 95-48-7 Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file The 3d structure may be viewed using Java or Javascript. Bisphenol A, an important monomer for resins, e. Los efectos de resonancia que involucran estructuras aromáticas pueden tener una influencia dramática en la acidez y basicidad. Please see the following for information about the library and its accompanying search program. Ortho functionalisation of phenols can be achieved using N-phenoxy amide directing groups. Entre los principales usos y aplicaciones del 3-metilfenol (C7H8O) se encuentran: Pesticidas. The acidic property of phenols are known as phenol acidity. It takes in consideration flows in channels with a characteristic size between several hundreds of micrometers to several nanometers. Senyawa 2 O-Benzyl-protected phenols with π-ortho-electron-withdrawing groups (6a, 6b, 6d, 6f) were swiftly (several in less than 3 h cf.10.75, and 1) prepared through co-precipitation.40 (μg/capita/day) Maximised Survey-derived Daily Intakes (MSDI-USA): Reaksi benzena dengan metil klorida dengan penambahan katalis AlCl 3 menghasilkan senyawa Meta bromo fenol. … Contoh-1 reaksi turunan benzena yang mengandung gugus pengarah orto-/para-: Reaksi substitusi aromatik elektrofilik, nitrasi fenol (hidroksibenzena) yang menghasilkan produk orto- dan para- . FEMA Number: 3461 2-isopropylphenol. Los fenoles antiguamente llevaban por nombre ácido fénico o ácido carbólico; son compuestos orgánicos aromáticos que presentan la fórmula C6H5OH, es decir, es un benceno que lleva enlazado un grupo hidroxilo (-OH). In one pattern, ortho- and para - products dominate, and the meta- product is an extremely minor byproduct.In contrast, meta- and para-electron-withdrawing groups slowed down the debenzylation (e. water). No reaction is also a possible answer. (APF = 25) Any powered, air-purifying respirator with an organic vapor Nomenclature of Phenols. Various parameters, including catalyst composition, reaction Cresol is a well-known environmental pollutant, toluene metabolite, uremic toxicant and accidental poisoning product. It is a derivative of phenol and is an isomer of o -cresol and m -cresol. 1: Two ways of representing a phenyl group. The first shows the Friedel-Crafts synthesis of the food preservative BHT from para-cresol. Kalium permanganat adalah oksidator kuat.1. Os gupos derivados dos hidrocarbonetos aromáticos que perderam um H são chamados de grupo aril ou arila. Por isso, estar em dia com as matérias e conhecer a fundo os conteúdos é essencial para que você tire de letra todos os desafios e responda com tranquilidade às questões dos vestibulares e do Enem. Edit. orto toluena fenol C.9. by a rearrangement reaction of dienones [ 30] in the dienone phenol rearrangement: [ 31] IUPAC Standard InChIKey: LHGVFZTZFXWLCP-UHFFFAOYSA-N Copy CAS Registry Number: 90-05-1 Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file The 3d structure may be viewed using Java or Javascript.They were extracted with ethyl acetate on an extraction column. This indicated that the compounds synthesized was 1,4-bis [(2-hydroxy-3-methoxy-5-methanal-phenyl)-methyl] piperazin. Estuda Mais 270K subscribers 3. Theory for C-H activation with d 8 metals Our objective is to find suitable descriptors for the steric conflicts between DG and the ortho-substituents of the aromatic substrate. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician.00 (μg/capita/day) Acidity of substituted phenols. Our goal is to become a fine chemical enterprise which could provide special products and services.237 g cm-3. 190-192 °C Alfa Aesar: 376 °F (191.8 Nitrobenzena 3. Substituents which lead to this result are called, " ortho-, para- directors". Virtuous Tecnologia da Informação, 2008-2023. [7] São obtidos principalmente através da extração de óleos a partir do alcatrão de hulha. FDA: No longer provide for the use of these seven synthetic flavoring substances. para-Cresol, also 4-methylphenol, is an organic compound with the formula CH 3 C 6 H 4 (OH). The facility with which the aromatic ring of phenols and phenol ethers undergoes electrophilic substitution has been noted. 2 Química b) ou → C 4 H (2. Synthetically established methods for methylation of phenols and demethylation of methyl phenyl ethers rely in general on hazardous reagents or/and harsh reaction conditions and are irreversible.2,4-dimetil-3-pentanon 6. ¿Qué contiene fenol? El fenol está presente en numerosos productos de consumo que se tragan, se frotan o se agregan a varias partes del cuerpo. Al observar la base conjugada del fenol, vemos que la carga negativa puede deslocalizarse por A.Mildly acidic, it requires careful handling because it can cause chemical burns. A possible ability of twelve new derivatives of known antioxidants trolox (TroH), trolox succinate (TroS), α-tocopheryl succinate (α-TOS) containing nitroxyl radicals (1-12) to protect bacterial cells from spontaneous and peroxide-induced mutagenesis and their cytotoxicity against six different tumor cells as well as two normal cells were investigated and compared with that for TroH, TroS Se explica la nomenclatura de benceno orto, meta y para, nomenclatura de hidrocarburos aromáticos paso a paso, o-m-p. `Whenever a molecule of the hydroxyl group, denoted by OH, is attached to a ring of benzene, the resultant structure is a Phenol`. It remained nearly the same thereafter with … Dinitro-ortho-cresol ( DNOC) is an organic compound with the structural formula CH 3 C 6 H 2 (NO 2) 2 OH. 2. Ejercicios Resueltos. The lens mostly consists of fiber cells lacking nuclei and organelles, having minimal metabolic activity; therefore, the defense of the lens tissue from the oxidative stress strongly relies on met … An electron outcoupling scheme was proposed for the high power FELs with optical cavities to avoid the power limitation because of overheating of the reflecting Orden acidez fenoles 7 años 5 meses antes #10078.5. by reaction with acetone/ketones to e. Fenil metil éter, metoxibenceno. No headers. Cadena principal: el ciclo que contiene la función principal (ciclohexan-2-en ol) Numeración: función principal con el número más bajo (1), … B. polycarbonate (PC), epoxi resins. Para-nitrophenol > Meta-nitrophenol > Phenol > Methyl phenol. Orto bromo fenol. The alcohol cyclohexanol is shown for And we custom manufacture new products according to customers' needs, and serve good quality products and service. Para nomear o composto fenólico fornecido no enunciado, devemos realizar os seguintes passos: Passo 1: identificação do aromático. An important feature of this mechanism is that we can identify the electrophile if we know the product because it is the atom or group which replaces the H +. Two examples are shown in the following diagram.5: Propiedades ácido-base de los fenoles. Let's begin by recalling the key steps in an electrophilic aromatic substitution mechanism.10 Asam Benzensulfonat 4 Tata Nama Senyawa Benzena Resposta 5 pessoas acharam útil Selenito report flag outlined Fenol é aquele hexágono com um círculo no meio (anel benzênico), em que está ligado um OH. Examples of deactivating groups in the relative order from the most deactivating to the least deactivating: This invention discloses a one-step method for preparing methyl phenol from toluene by catalytic oxidation. Edit. Some of these mono-substituted compounds (labeled in red and green), such as phenol or toluene, can be used in place of benzene for the chemical's base name. PARA (1,4- disustituido) para-metil fenol o 4-metil fenol. No antraceno acima, temos dois radicais etil (H 3 C-CH 2 ), um radical metil (CH 3) e DG SANTE Food Flavourings: 04. [2] [3] It is a white solid. Perhatikan rumus struktur senyawa turunan benzena berikut! Hidroksi metil benzen/hidroksi toluena/metil fenol 2. by oligomerisation with formaldehyde + base catalysed reaction with epichlorohydrin to epoxi resin components. Please save your changes before editing any questions. Ortho-phenylphenol (OPP, or 2-phenylphenol) and its water-soluble salt, sodium ortho-phenylphenate (SOPP), are antimicrobial agents used as bacteriostats, fungicides, and sanitizers. The table above shows us that as the size of the alkyl substituent already present in the ring increases, attack at the ortho position becomes more difficult, and the percentage of ortho isomers in the mixture of products decreases. Besides serving as the generic name for the entire family, the term phenol is also the specific name for its simplest member, monohydroxybenzene, also known as benzenol. Nomenclatura IUPAC, fenol, ácido bencen El orto-fenilfenol (denominado en la literatura como OPP) es un o-fenilfenato.5 Benzaldehida 3. 6. 4. Asam benzoat Asam benzoat adalah senyawa turunan benzena yang salah satu atom hidrogennya tersubstitusi oleh gugus asam karboksilat (-COOH). Para bromo fenol B.044 2-isopropylphenol. Meta bromo fenol. It remained nearly the same thereafter with further increases in reaction temperature. Now, for the inductive effect, the greatest intensity is observed at the ortho-position, followed by meta-, and then para-. São sólidos brancos quando isolados, mas na … IUPAC Standard InChIKey: LHGVFZTZFXWLCP-UHFFFAOYSA-N Copy CAS Registry Number: 90-05-1 Chemical structure: This structure is also available as a 2d Mol file or … Benzena disubstitusi merupakan senyawa benzena yang dua atom hidrogennya diganti dengan gugus fungsional yang lain.1 16. [3] Natural occurrences Fenol formado pelo aromático naftaleno Fenol formado pelo aromático antraceno Fenol com ramificação: Fenol com os radicais metil e etil na sua composição A regra de nomenclatura IUPAC para todo e qualquer fenol é a mesma, a saber: Hidroxi + Nome do aromático Assim, se o aromático for diferente, o fenol terá, consequentemente, um nome diferente. Meta klorofenol. Podem ser representados por -Ar.9. Rumus struktur dari bensilamina adalah …. The structure of the one-phase material Sn-Ce-O is similar to SnO 2 but Step 1/2.. Email: Mr. This phenolic acidity is further enhanced by electron-withdrawing substituents ortho and para to the hydroxyl group, as displayed in the following diagram. Orto bromo benzil alkohol. Other names: Phenol, o-methoxy-; o-Guaiacol; o-Hydroxyanisole; o-Methoxyphenol; Anastil; Guaiacol; Guaiastil; Guaicolina; Guajol; Guasol; O-Methyl A compound containing a benzene ring which has one or more alkyl substituents is called an arene. Oleh karena itu, reaksi membentuk asam orto-hidroksibenzoat yang dikenal sebagai asam salisilat This book describes physical, mathematical and experimental methods to model flows in micro- and nanofluidic devices.5. The method utilizes toluene as the raw material, H2O2 as the oxidant, acetonitrile as the reaction medium, activated carbon as the catalyst carrier, and iron salt as the active component, and reacts at 0-75 deg.puorg lyxordyh a ot dednob gnir enezneb a gniniatnoc sdnuopmoc cinagro eht era slonehP me siautnop saçnerefid matneserpa sam ,ralucelom alumróf amsem a meussop euq saicnâtsbus ertne erroco euq onemônef mu é analp airemosI ?analp airemosi é euq O )lonef-litem-arap uo( lonef-litem-4)lonef-litem-atem uo( lonef-litem-3)lonef-litem-otro uo( lonef-litem-2:oãçisop ed soremôsi sêrt iussop lonef-litem otsopmoc o ,olpmexe roP sdnuopmoc enezneb detutitsbus ni stceffe ohtro niam eerht era erehT . Orto bromo benzol. 1: Nitration of arenes.Nos exemplos dessa aula veremos al Daftar Isi 1 Rumus Struktur Benzena 2 Sifat Senyawa Benzena 3 Senyawa Turunan Benzena 3.9. Maximised Survey-derived Daily Intakes (MSDI-EU): 5.2 17. A phenyl group consists of a benzene ring with one of its hydrogens removed. with R as alkyl groups (C n H 2n +1). Conversely, if we know the electrophile, we can predict the structure of the product. Turunan benzena berikut yang disebut orto nitro fenol adalah … Jawaban: C. orto hidroksi fenol B. Nama untuk senyawa turunan benzena dengan rumus struktur gambar di atas adalah …. Multiple Choice. by oligomerisation with formaldehyde + base catalysed reaction with epichlorohydrin to epoxi resin components. El nombre sistemático del estireno es vinilbenceno, puesto que el radical, CH 2 Fenol. ortho-Cresol (IUPAC name: 2-methylphenol, also known as 2-hydroxytoluene or ortho-Toluenol) is an organic compound with the formula CH3C6H4(OH). by a rearrangement reaction of dienones [ 30] in the dienone phenol rearrangement: [ 31] IUPAC Standard InChIKey: LHGVFZTZFXWLCP-UHFFFAOYSA-N Copy CAS Registry Number: 90-05-1 Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file The 3d structure may be viewed using Java or Javascript. In phenols, the sp2 s p 2 hybrid carbon atom of the benzene ring is directly attached to the hydroxyl group and acts as an electron Substitution of the hydroxyl hydrogen atom is even more facile with phenols, which are roughly a million times more acidic than equivalent alcohols. Orto bromo benzil alkohol. polycarbonate (PC), epoxi resins. Both compounds have a methyl group (-CH3) and a hydroxyl group The product was obtained as a white solid, melting point 245-2470C with a yield of 67.The molecule consists of a phenyl group (−C 6 H 5) bonded to a hydroxy group (−OH). 5 Cresol. In a general sense, the ortho effect is associated with substituted benzene compounds. When comparing o,m,p-toluidine basicities, the ortho effect is believed to explain why o-toluidine is weaker. The generation of these species often requires pre-functionalized The correct option is B.g.1. Awalan orto untuk menyatakan posisi substituen pada atom C nomor 1,2 ; meta untuk posisi 1,3 ; dan para untuk posisi 1,4.25 catalyst, using feed with a phenol-to-methanol molar ratio of 1:5. It is extremely toxic to humans and was previously used as a herbicide and insecticide. orto metil hidroksi benzena 2.The catalytic activity strongly depends on the composition, acid-base properties, and structural stability.

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4) → C 4 H 8 c) ou → C 5 H (2. Figure 15. Orto bromo benzol E. Selain itu digunakan juga sebagai bahan baku pembuatan … Fig. Soal No. A. 10 The procedure works well for the ortho-prenylation of symmetric phenol derivatives as well as derivatives that have already been desymmetrized and contain two or fewer oxygen substituents. Samples of phenol, 4-methylphenol, 2,6-dimethylphenol, 3-methoxyphenol, 2-naphthol, catechol, resorcinol, or 1,4-hydroquinone were prepared in water, human blood, or urine.9 Kloro Benzena 3. Dinitro-ortho-cresol ( DNOC) is an organic compound with the structural formula CH 3 C 6 H 2 (NO 2) 2 OH. Perhatikan rumus struktur senyawa turunan benzena berikut! C H 3 I Nama senyawa tersebut adalah. orto hidro toluena D.2,4,6-trinitro toluena. The conversion of phenol increased with temperature, reaching a maximum at 673 K. Some of these mono-substituted compounds (labeled in red and green), such as phenol or toluene, can be used in place of benzene for the chemical's base name. Trata-se de um antraceno, pois apresenta três anéis benzênicos na horizontal; Passo 2: identificação das ramificações. Os cresóis em geral cheiram a medicamentos. c. Soal No. Primeiro passo é reconhecer a função orgânica que se está trabalhando, para depois prosseguir com sua nomenclatura correta. Below is a list of commonly seen benzene-derived compounds. ORTO-FENILFENOL (OPP) Otras denominaciones o-pp; OPP 2-bifenil (1,1-bifenil)-2-ol El orto-fenilfenol (OPP) es una sustancia química orgánica en forma sólida (como la arena) cristalina, pulida y de color blanco. Maximised Survey-derived Daily Intakes (MSDI-EU): 250., entries 6g and 6h), relative to the control A variety of synthetic methods have been developed to construct the ortho-functionalized phenols which are highly useful in chemical industry 10, functional materials 11 and medicines 12,13,14 2-Aminophenol is an organic compound with the formula C 6 H 7 NO. Directed ortho-metalation (DoM) is thought by most to be the best strategy for site-specific functionalization of aromatic compounds (Scheme 1). They are widely-occurring phenols (sometimes called phenolics) which may be either natural or manufactured. (APF = 10) Any air-purifying half-mask respirator with organic vapor cartridge (s) in combination with an N95, R95, or P95 filter. orto metil anilida o E. Please see the following for information about the library and its accompanying search program. 2-Aminophenol may cause contact dermatitis.5) → C 5 H 10 Nomenclatura A nomenclatura dos ciclanos é feita com o uso do prefixo (iniciado por "ciclo" seguido do radical correspondente ao número de átomos de carbono), mais o sufixo ano, que representa as ligações simples entre os átomos de carbono. Our goal is to become a fine chemical enterprise which could provide special products and services. El 4-metilfenol es un alcohol que se encuentra en estado sólido, incoloro y con un olor característico. Methods based on solving kinetic equations, coupled kinetic-hydrodynamic description, and Reaksi substitusi aromatik elektrofilik, nitrasi fenol (hidroksibenzena) yang menghasilkan produk orto- dan para-. 90-43-7. Soal No. General Information. Exercise 17. 10 The procedure works well for the ortho-prenylation of symmetric phenol derivatives as well as derivatives that have already been desymmetrized and … Infobox references. 37 Fenol merupakan salah satu antiseptik yang paling awal digunakan, namun penggunaannya menyebabkan kulit melepuh. orto metil hidroksi benzena 2. Relación: 1.C for 3-11 h to obtain methyl phenol. Fenol é uma função orgânica caracterizada por uma ou mais hidroxilas ligadas a um anel aromático. Orto bromo benzil alkohol. Orto bromo fenol C. Su fórmula es C7H8O y se encuentra formado por: 7 átomos de carbono. A. Alkyl-substituted Li-phenolates with BnBr in water solution lead to a mixture of o- and p-Bn-substituted phenols together with a substantial amount of phenol Bn ether. Metil é o CH3 Orto/Meta/Piro se refere à posição do metil em relação ao OH. Thus, a phenol molecule consists of two parts one aryl group part and the other hydroxyl group part.1: Two ways of representing a phenyl group. orto hidro toluena D. Heat and H 2 SO 4 (assume the phenol does not act as a nucleophile in this case) Answer. Entre el fenol, el 4 metil fenol, el 4 cloro fenol, y el 4 nitrilofenol. A. Creolina: os metil-fenóis são comumente conhecidos como cresóis e a mistura dos isômeros orto, meta e para-cresol é muito utilizada como desinfetante doméstico.Intermolecular contacts and hydrogen bonding were analyzed. They are also categorized as methyl phenols. Perhatikan rumus struktur senyawa turunan benzena berikut! Hidroksi metil benzen/hidroksi toluena/metil fenol 2. "Cresol. Email: Mr. Here's a concrete example: the The electronic spectra of phenol, 2-chlorophenol, 2-aminophenol, and 2-nitrophenol have been studied both experimentally and computationally. Orto metil anilina.But when comparing o,m,p-toluic acid basicities, the ortho effect is stated as a reason why o-toluic acid is stronger acid. Jia. El 2-metilfenol es un alcohol sólido incoloro utilizado ampliamente en la industria química. This phenolic acidity is further enhanced by electron-withdrawing substituents ortho and para to the hydroxyl group, as displayed in the following diagram. The following filters may also be used: N99, R99, P99, N100, R100, P100. However, little is known about its effect on cardiovascular system. This is done to ensure uniformity for all practical purposes. Síntesis de la vitamina E. Se trata de una sustancia tóxica para los organismos acuáticos por lo que debe de evitarse su contacto con el medio ambiente. by reaction with acetone/ketones to e. Severe methemoglobinemia can result in dysrhythmias, seizures, coma, and death. Estes isômeros também possuem 3 Directed ortho-Metalation (DoM) and Alkylation.6667 °C / 760 mmHg) Wikidata fen ol Para nombrar a los fenoles si se deben seguir cierto tipo de criterios, dado que incluye un anillo aromático.25, 0.. Acidity is determined by the ability of a compound to donate a proton (H+ ion).Asam 2-etil-3,3-dimetil butanoat 5. orto metil amino benzena me til ani lin a B. orto hidro metil benzena E. Se estiver no mais distante, é Piro. Figure 15. Multiple Choice. orto metil hidroksi benzena 2. alcohol bencílico. Fenol: Nomenclatura IUPAC e Orto, Meta, Para. 3 minutes. Disubtitusi berarti benzena mengikat dua subtituen, maka terdapat kemungkinan memiliki tiga isomer struktur.. The phenomenon of decreasing basic strength with the presence of electron-releasing as well as electron-withdrawing groups in the ortho position is known as the ortho effect. Phenols are acidic in nature due to their ability to lose a hydrogen ( −H − H) ion form hydroxyl group ( −OH − O H) to form phenoxide ions. Contoh senyawa benzena disubstitusi adalah kresol, dengan nama lain metil fenol. Dalam hal ini erat kaitannya dengan substitusi orto, meta dan para. CAS No. 8 átomos Transcripción del video.HOOC 5 H 6 C lukelom sumur iaynupmem taozneb masa naikimed nagneD . e. CAS No. When one studies the acidity of chlorophenols, one notices the following: First of all, chlorophenols are more acidic than phenol, due the negative inductive effect (−I) of chlorine, that reduces the negative charge, located on the oxygen of the phenolate Diaryl ethers undergo electrocatalytic hydrogenolysis (ECH) over skeletal Ni cathodes in a mild, aqueous process that achieves direct C-O cleavage without initial benzene ring saturation. A. Disolvente. 24 h for unsubstituted phenol 6l) and cleanly debenzylated, with less than 5% of the undesired C-benzylated phenol by-products. Parasetamol memiliki nama kimia para-asetilamino fenol dengan rumus kimia C 8 H 9 NO 2 sedangkan nama kimia aspirin adalah asam orto-asetiloksi benzoat dengan rumus kimia C 8 H 9 O Dari rumus kimia tersebut, dapatkah Anda menuliskan rumus strukturnya? A. Orto bromo fenol. Pembahasan : Perhatikan deret perioritas, penomoran diberikan bagi yang memiliki perioritas paling tinggi. Fig. Formulación y nomenclatura de 3-metilfenol, m-metilfenol, m-cresol | formulacionquimica. Senyawa orto-metilfenol memiliki gugus hidroksil dan metil. Orto bromo benzil alkohol Jawaban: C Soal No. Synthesis of Phenols. Here a method for chemodivergent C-H alkenylation, alkylation, carboetherification, or [3 + 2] annulation Fig. The IUPAC name for Phenol is benzenol. Meta metil … Diaryl ethers undergo electrocatalytic hydrogenolysis (ECH) over skeletal Ni cathodes in a mild, aqueous process that achieves direct C-O cleavage without initial benzene ring saturation. Orto bromo benzol.1: Two ways of representing a phenyl group. 8 átomos de hidrógeno. It is a white crystalline solid that is volatile. Ortho Effect Explanation. Please save your changes before editing any questions. Signs and symptoms of methemoglobinemia may include shortness of breath, cyanosis, mental status changes, headache, fatigue, exercise intolerance, dizziness and loss of consciousness. Phenol was first extracted from coal The naming process for 2-chlorophenol (o-chlorophenol). Tin dioxide grains are large and their porosity is 0. meta iodo toluena C. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Pd/norbornene cooperative catalysis provides a strategy for arene functionalization, but the electrophile scope is typically limited to 'soft' elements such as carbon, nitrogen and sulfur. It is a yellow solid that is only slightly soluble in water.162 cm 3 /g at BET surface area 180 m 2 /g. Email: Mr. p-nitro toluena. Jika kedua subtituen diikat oleh atom-atom karbon 1,2- disebut orto (o) satu sama lain, jika karbon 1,3- disebut meta (m), dan 1,4 disebut para (p). For the bromotyrosine derivative a number of recently published methods for the m-cresol: 3-metil fenol, m-hidroxitolueno p-cresol: p-hidroxitolueno, 1- hidroxi- 4- metilbenzeno Descrição e usos O cresol comercial, conhecido também como ácido cresílico ou tricresol, apresenta coloração castanha clara na forma líquida e é constituído por três isômeros (orto, meta e para); na forma Garam ini mengalami reaksi kopling dengan 2-naftol sehingga terbentuk senyawa orto-fenilazo-2-naftol. (A fenolok olyan hidroxilvegyületek, amelyben a hidroxilcsoport közvetlenül aromás Table 16..slonehP gniman elihw dewollof eb syawla tsum taht ecalp ni senilediug fo tes a sah CAPUI . Los fenoles son ácidos débiles y por su estructura se asemejan a los alcoholes. 1 pt. Metil benzen/Toluena Amina benzen/anilina Hidroksi benzen/fenol Benzaldehida Asam benzoat Vinil benzen/stirena Jika terdapat dua substituen, maka posisi substituen dinyatakan dengan awalan o (orto), m (meta), atau p (para). Benzolgyűrűt tartalmaznak a gyűrűjükhöz egy metil- és egy hidroxilcsoport kapcsolódik. A fenolok legegyszerűbb képviselője. Phenol has a pKa p K a approximately equal to 9. B Posisi substituen dipisahkan oleh satu atom C, sehingga diberi awalan meta, bila benzena mengikat Estrutura e produção. Bisphenol A, an important monomer for resins, e. A phenyl group consists of a benzene ring with one of its hydrogens removed. Multiple Choice. 30 seconds.C lonef aneulot otro .Both have been used in agriculture to control fungal and bacterial growth on stored crops, such as fruits and … The acidic property of phenols are known as phenol acidity.2 Fenol (Hidroksi Benzena) 3.1111 °C) NIOSH GO6300000 191 °C Food and Agriculture Organization of the United Nations o-Cresol: 191 °C OU Chemical Safety Data (No longer updated) More details: 201 °C OU … Fenol formado pelo aromático antraceno. Along with its isomer 4-aminophenol, it is an amphoteric molecule and a reducing agent. metil)fenol mengalami perubahan warna pada pH 9-10 dari kuning menjadi oranye. Existem três formas isômeras do cresol: o orto-cresol (o-cresol ou 2-metil-fenol), o meta-cresol (m-cresol ou 3-metil-fenol) e o para-cresol (p-cresol ou 4-metil-fenol), que se diferem apenas pela posição do radical metil (CH 3) no anel aromático e podem ser encontradas separadamente ou combinadas.In the case of o,o,p-tri- and o,o-di-substituted phenols dearomatization occurs affording o-Bn Methylation of phenol with methanol as an alkylating agent to produce 2,6-xylenol was investigated over copper manganese mixed oxide spinels, Cu x Mn 3−x O 4 (x = 0, 0. This is an example of a steric effect —an effect caused by the size ortho-Quinone methides are highly reactive transient intermediates found in some organic syntheses and biological processes. It is a derivative of phenol and is an isomer of o -cresol and m …. General Information. Now, let's compare ortho methyl phenol and para methyl phenol. Molecules 2016, 21, 88 2 of 8 As part of our own synthetic efforts directed towards the efﬁcient solid-phase synthesis of bisebromoamide 5 [6,7], gram-scale syntheses of each of the component building blocks was required [8,9]. Características. 7. When one studies the acidity of chlorophenols, one notices the following: First of all, chlorophenols are … E. Produk orto- lebih dominan dibanding produk para-, sementara produk meta- sangat-sangat kecil persentasenya. Edit. Conservante. 30 seconds.g. You can also browse global suppliers,vendor,prices,Price,manufacturers of 4-ISOPROPYL-3-METHYLPHENOL(3228-02-2). Infobox references. Awalan orto untuk menyatakan posisi substituen pada atom C nomor 1,2 ; meta untuk posisi 1,3 ; dan para untuk posisi 1,4. Como referenciar: "Aromáticos (continuação) - Hidrocarbonetos" em Só Química.1. Please save your changes before editing any questions. Existem três formas isômeras do cresol: o orto-cresol (o-cresol ou 2-metil-fenol), o meta-cresol (m-cresol ou 3-metil-fenol) e o para-cresol (p-cresol ou 4-metil-fenol), que se diferem apenas pela posição do radical metil (CH 3) no anel aromático e podem ser encontradas separadamente ou combinadas. 4 Turunan benzena berikut yang disebut orto nitro fenol adalah … Jawaban: C Soal No. Jawaban: E. Awalan orto untuk menyatakan posisi substituen pada atom C nomor 1,2 ; meta untuk posisi 1,3 ; dan para untuk posisi 1,4. Please save your changes before editing any questions. Kemudian letak keduanya bersebelahan 2-Phenylphenol, or o -phenylphenol, is an organic compound. Guo. meta metil Isomeria plana e espacial: química orgânica! Entenda tudo sobre o que é isomeria com o Stoodi! Nós sabemos que o campo de estudo da Química é bastante amplo. A.