3-Ethyl-5-methylphenol

C7Hf,N202 5444-02-0) see Nevirapine (35,4a5,8JL5)-2-[(2/f)-2-[(4S)-4,5-dihydro-2-(3-hydroxy-2-methylphenyl)-4-oxazolyl)-2-hydroxyethyl]- -(l,l-di-methylethyl)decahydro-3-i oquinolinecarboxamidc (C2f,H3yN304 188936-07-4) see Nelfinavir mesylate 3-[(4S)-4,5-dihydro-4-[(li )-2-hydroxy-l-[(methylsulfo-nyl)oxy]ethyl]-2-oxazolyl]-2-methylphenol (CpHpNOf S) see Nelfinavir mesylate... 

Figure 11.11 Pyrogram of a paint sample collected from a decorative frame of the Universal Judgement by Bonamico Buffalmacco (fourteenth century, Monumental Cemetery of Pisa, Italy). Pyrolysis was performed with a microfurnace pyrolyser, at 600°C, in the presence of HMDS. 1, Benzene 2, ethyl acrylate 3, methyl methacrylate 4, acetic acid, trimethyl silyl ester 5, pyrrole 6, toluene 7, 2 methylpyrrole 8, 3 methylpyrrole 9, crotonic acid 10, ben zaldehyde 11, phenol 12, 2 methylphenol 13, 4 methylphenol 14, 2,4 dimethyl phenol 15, benzyl nitrile 16, 3 phenylpropionitrile 17, indole 18, phthalate 19, phthalate 20, ben zyl benzoate HMDS pyrolysis products [27]...

Note May contain acetone, aniline, 2-methylphenol, or ethyl acetate to prevent corrosion with aluminum, iron, and zinc. To prevent acid formation, stabilizers added to tetrachloroethylene may include tert-butylglycidyl ether, diallylamine, 2,3-epoxypropyl isopropyl ether, diisopropylamine, 4-methylmorpholine, diallylamine, tripropylene, cyclohexene oxide, and benzotriazole. 

AI3-00040, see Cyclohexanol AI3-00041, see Cyclohexanone AI3-00045, see Diacetone alcohol AI3-00046, see Isophorone AI3-00050, see 1,4-Dichlorobenzene AI3-00052, see Trichloroethylene AI3-00053, see 1,2-Dichlorobenzene AI3-00054, see Acrylonitrile AI3-00072, see Hydroquinone AI3-00075, see p-Chloro-rrr-cresol AI3-00078, see 2,4-Dichlorophenol AI3-00085, see 1-Naphthylamine AI3-00100, see Nitroethane AI3-00105, see Anthracene AI3-00109, see 2-Nitropropane AI3-00111, see Nitromethane AI3-00118, see ferf-Butylbenzene AI3-00119, see Butylbenzene AI3-00121, see sec-Butylbenzene AI3-00124, see 4-Aminobiphenyl AI3-00128, see Acenaphthene AI3-00134, see Pentachlorophenol AI3-00137, see 2-Methylphenol AI3-00140, see Benzidine AI3-00142, see 2,4,6-Trichlorophenol AI3-00150, see 4-Methylphenol AI3-00154, see 4,6-Dinitro-o-cresol AI3-00262, see Dimethyl phthalate AI3-00278, see Naphthalene AI3-00283, see Di-rj-butyl phthalate AI3-00327, see Acetonitrile AI3-00329, see Diethyl phthalate AI3-00399, see Tributyl phosphate AI3-00404, see Ethyl acetate AI3-00405, see 1-Butanol AI3-00406, see Butyl acetate AI3-00407, see Ethyl formate AI3-00408, see Methyl formate AI3-00409, see Methanol AI3-00520, see Tri-ocresyl phosphate AI3-00576, see Isoamyl acetate AI3-00633, see Hexachloroethane AI3-00635, see 4-Nitrobiphenyl AI3-00698, see IV-Nitrosodiphenylamine AI3-00710, see p-Phenylenediamine AI3-00749, see Phenyl ether AI3-00790, see Phenanthrene AI3-00808, see Benzene AI3-00867, see Chrysene AI3-00987, see Thiram AI3-01021, see 4-Chlorophenyl phenyl ether AI3-01055, see 1.4-Dioxane AI3-01171, see Furfuryl alcohol AI3-01229, see 4-Methyl-2-pentanone AI3-01230, see 2-Heptanone AI3-01231, see Morpholine AI3-01236, see 2-Ethoxyethanol AI3-01238, see Acetone AI3-01239, see Nitrobenzene AI3-01240, see I idine AI3-01256, see Decahydronaphthalene AI3-01288, see ferf-Butyl alcohol AI3-01445, see Bis(2-chloroethoxy)methane AI3-01501, see 2,4-Toluene diisocyanate AI3-01506, see p,p -DDT AI3-01535, see 2,4-Dinitrophenol AI3-01537, see 2-Chloronaphthalene... 

Ethyl tert-butvl ether. Ethylene dibromide, Ethyl ether, Ethvl sulfide. 2-Heptanone, Methanol, 2-Methyl-1,3-butadiene, 2-Methvl-2-butene. Methyl chloride, Methylene chloride, Methyl iodide. Methyl mercaptan, 2-Methylphenol, Methyl sulfide. Monuron. Nitromethane, 2-Nitropropane, A-Nitrosodimethylamine, 1-Octene, 2-Pentanone, Propylene oxide, Styrene, Thiram, Toluene, Vinyl chloride, o-Xylene, tn-Xylene Formaldehyde cyanohydrin, see Acetontrile,... 

Methamidophos, see Acephate Methane, see Acetaldehyde, Benzoic acid, 7 Bromobenzoic acid. 3-Bromobenzoic acid. 4-Bromobenzoic acid. Bromoform, Carbatyl, Catechol, 2-Chlorobenzoic acid. 3-Chlorobenzoic acid. Chloroform, Dibromochloromethane, 2,5-Dichlorobenzoic acid. 1,2-Dichloroethane, Ethylamine, Ethyl bromide. Ethylene dibromide, Ethylenimine, Formic acid, Hydroqninone, 4 Hvdroxvbenzoic acid. Indole, 2-Iodobenzoic acid. 3 lodobenzoic acid. Methyl bromide, 4-Iodobenzoic acid. 2-Methylphenol, 4-Methylphenol, Phenol, Prorocatechuic acid. Svringic acid. Svringaldehvde. TCDD, Tetrachloroethylene, Toluene, Trichloroethylene, Vanillin. Vanillic acid. Vinyl chloride... 

Bisglycidylacrylate, ethoxylated bisphenol A dimethacrylate, diurethane dimethacrylate, triethyleneglycol dimethacrylate, tricycle[5.2.1.02,6]decanedimethanol diacrylate, camphorquinone, ethyl 4-(/V,/V-dimcthylamino)benzoate, diphenyl iodonium hexafluorophosphate, 2,6-di-t-butyl-4-methylphenol, benzotriazole... 

Chemicals and Standard Solutions. Cyclohexanone, cyclohexanol, 1,3,5-trichlorobenzene, 1,2,4-trichlorobenzene, phenol, 4-methylphenol, 4-chloro-phenol, 1,2,3,4-tetrahydroisoquinoline, 1-chlorohexane, 1-chlorododecane, and 1-chlorooctadecane were obtained from Aldrich. Acetone, tetrahydrofuran, ethyl acetate, toluene, dimethyl sulfoxide, and methanol were obtained from J. T. Baker. Distilled-in-glass isooctane, methylene chloride, ethyl ether, and pentane were obtained from Burdick and Jackson. Analytical standard kits from Analabs provided methyl ethyl ketone, isopropyl alcohol, ethanol, methyl isobutyl ketone, tetrachloroethylene, dodecane, dimethylformamide, 1,2-dichlorobenzene, 1-octanol, nitrobenzene, 2,4-dichlorophenol, and 2,5-dichlorophenol. All chemicals obtained from the vendors were of the highest purity available and were used without further purification. High-purity water... 

A special type of polymeric antioxidant is anoxomer, which consists of 1,4-benzenediol, 2-(l,l-dimethylethyl)-polymer with diethylbenzene, 4-(l,l-dimethyl-ethyl)phenol, 4-methoxy-phenol, 4,4 -(l-methylethylidene)bis(phenol), and 4-methylphenol prepared by condensation polymerization of divinylbenzene (m- and p-) with tert-butylhydroquinone, tert-butylphenol, hy-droxyanisole, p-cresol, and 4,4 -isopropylidenediphenol. Total monomers, dimers, and trimers below 500 are not more than 1%. Anoxomer is permitted in the United States as an antioxidant in food at a level of not more than 5 ppm of fat and oil content of the food. 

N,N-Bis -(2-hydroxy ethyl)-/ -pheny lene diamin e N,N-Bis -(2-hydroxyethyl)-/ -phenylene diamin e N,N-Bis -(2-hydroxyethyl)-/ -phenylene diamin e N,N-Bis -(2-hydroxyethyl)-/ -phenylene diamin e N,N-Bis -(2-hydroxy ethy l)-p-pheny len ediamin e N,N-Bis -(2-hydroxyethy 1)-p -phenylene diamin e 4-Amino-3-methylphenol 4-Amino-3-methylphenol 4-Amino-3-methylphenol 4-Amino-3-methylphenol 4-Amino-3-methylphenol 4-Amin o-3-methylp heno 1... 

The decomposition of lignin into aromatic repeat units is a long practiced art that reached its zenith around 1800 a.d. Production of chemicals by wood pyrolysis was extensively practiced until, between 1750 and 1850 a.d., coal slowly displaced wood as the major chemical source available to man. Wood is usually pyrolyzed at 260-4 lO C and lignin at 300-440 C to produce 50 wt % charcoal, 10-15% tar, and lesser amounts of 2-propanone, ethanoic acid, and methanol [16-181. The tar is often called wood creosote and is a complex mixture of substituted phenols and aromatics. It contains phenol, 2- and 4-methylphenol, 2,4-dimethylphenol, 2-methoxyphenol, 4-methyl-2-methoxyphenol, and 4-ethyl-2-methoxyphenol [19]. 

A round-bottom flask was charged with a mixture of 2,6-dimethylphenyl trifluoromethanesulfonate (127.1 mg, 0.5 mmol), anhydrous lithium chloride (4 mmol), copper(I) bromide (0.2 mmol), and dichlorobis(triphenylphosphine)-palladium(II) (10-20 mol %) suspended in DMF (2.5 cm ). 2-Methoxyphenyl-tributyltin (1-1.5 mmol) was added to the mixture in two portions, i.e., at the beginning of the reaction and at half completion. A crystal of 2,6-bis(l,l-dime-thylethyl)-4-methylphenol (BHT) was added as an inhibitor of radical processes, and the mixture was then heated to reflux, under argon, during 8 - 24 h. Water and Et20 (25 cm ) was added, and the organic phase was washed subsequently with hydrochloric acid solution (1.5 mol dm , 6 x 20 cm ), a saturated solution of potassium fluoride (5 x 20 cm ), and finally dried over anhydrous sodium sulfate. Evaporation to dryness furnished a residue and that was suspended in ethyl acetate and the insoluble material was filtered off. The filtrate was... 

Metal-carbon bonds in some Zn and A1 porphyrins, e.g., N-methyltetra-phenylporphinatozinc ethyl and tetraphenylporphinatoaluminium ethyl, can be activated photochemically and undergo substitution reactions with hindered phenols such as 2,6-di-t-butyl-4-methylphenol and 2,6-di-t-butyl-4-methoxy-phenol. The products are metalloporphyrins having a phenoxy-group bound to Zn or Al. Photoexcitation is thought to increase the electron density of the ethyl group bound to the central metal atom and this brings about an enhanced nucleophilicity of the metal-carbon bond. " ... 

C11H15N02 carbamic acid, ethylphenyl-, ethyl ester 1013-75-8 489.15 42.843 2 22400 C11H160 2-butyl-4-methylphenol 6891-45-8 501.15 41.286 1,2... 

A sensitive method was developed for determination of phenol and 4-methylphenol in serum, based on LLE with ethyl acetate and HPLC with ELD. This was simpler... 

On constant current electrolysis (0.27 mAcm +180-600 mV V5. SCE) in AC2O containing ethyl vinyl ether, 4,5-dimethoxy-2-methylphenol (108) was converted to two cyclohexa-2,4-dienones 109 and 110 and cyclohexa-2,5-dienone 111, in 29, 18 and 8% yields, respectively (Scheme 20). The product 110 is formed by nucleophilic substitution at the C-6 position followed by acetal formation with EtOH molecule generated initially from the ethyl vinyl ether while the C-4 position is attacked by ethyl vinyl ether to yield 111. 

SCHEME 20. Anodic oxidation of 4,5-dimethoxy-2-methylphenol in the presence of ethyl vinyl ether... 

Eremopetasidione (440), isolated recently from rhizomes of Petasites japonicus MAXIM, has been used in the treatment of tonsillitis, contusion and poisonous snake bites in Chinese medicine. Recently, racemic 440 was synthesized in 9 steps (30% overall yield) starting from 2-methoxy-4-methylphenol (421) (Scheme 85) . Oxidation of 421 with PhI(OAc)2 in MeOH in the presence of ethyl vinyl ketone (EVK) afforded in 96% yield a Diels-Alder adduct 441, which was converted into sUyl enolate 442 in 96% yield. This enolate further underwent Cope rearrangement to give regio- and stereoselectively the desired c -decalin 443 (70%). Further conversion of 443 to the target molecule 440 was then accomplished. 

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