Para-ethyl-phenol

Phenol, ortho-tert-butyl Cured Lf u Phenol, para-ethyl ... 

Phenetidine.—The ethyl ether of phenol is known as phenetole and the ethyl ether of para-amino phenol, or para-amino phenetole is... 

Beilstein Handbook Reference) A13-26063 BRN 1363317 EINECS 204-598-6 4-Ethylphenol FEMA No, 3156 HSDB 5598 Hydroxyphenylethane, p- NSC 62012 p-Ethylphenol para-Ethylphenol Phenol, 4-ethyl-, Needles mp = 45.0 bp = 217,9 Xm = 223, 278 nm (s = 7090,1950, MeOH) slightly soluble in H2O, CHCI3, slightly soluble in Me2CO, very solubie in EtOH, Et20, CeHe, CS2,... 

Kinetic studies of various systems have been carried out as follows the reaction of 2,2 -dichlorodiethyl sulfide and of 2-chloroethyl ethyl sulfide with diethylenetriamine and triethylamine in 2-methoxyethanol ° the catalysed reactions of substituted phenols with epichlorohydrin the reactions of para-substituted benzyl bromides with isoquinoline under high pressure the reactions of O-alkylisoureas with OH-acidic compounds [the actual system was N, N -dicyclohexyl-0-(l-methylheptyl)isourea with acetic acid] and tlie ring opening of isatin in aqueous binary mixtures of methanol and acetonitrile cosol vents. 

From the molecular beam MS of the pyrolysis products of the P/N fractions, a number of phenolic compounds were detected guaiacol (2-methoxyphenol) (m/z 124), catechols (m/z 110), isomers of substituted 2-methoxyphenols with alkyl groups such as methyl (m/z 138), vinyl (m/z 150), 3-hydroxy-propen(l)-yl (m/z 180), allyl (m/z 164), hydroxyethyl (m/z 168), and ethyl (152), most likely in the para position. In addition, a few carbohydrate-derived components are also present in this fraction such as furfuryl alcohol and other furfural derivatives. 

Diphenyl carbonate from dimethyl carbonate and phenol Dibutyl phthalate from butanol and phthalic acid Ethyl acetate from ethanol and butyl acetate Recovery of acetic acid and methanol from methyl acetate by-product of vinyl acetate production Nylon 6,6 prepolymer from adipic acid and hexamethylenediamine MTBE from isobutene and methanol TAME from pentenes and methanol Separation of close boiling 3- and 4-picoline by complexation with organic acids Separation of close-boiling meta and para xylenes by formation of tert-butyl meta-xyxlene Cumene from propylene and benzene General process for the alkylation of aromatics with olefins Production of specific higher and lower alkenes from butenes... 

Cyclodextrins form inclusion compounds in aqueous solution with various molecules which may then exhibit modified reactivity (see reference 185 above). It was reported in 1975 that the presence of p-cyclodextrin modified the ortho para ratio of hydroxyacetophenones formed photochemically from phenyl acetate,and the photoinduced rearrangements of acetanilide, ben-zanilide, and ethyl phenyl carbonate under similar conditions are now reported. In each case the para rearrangement isomer is favoured, and this is rationalized in terms of the aromatic nucleus being bonded into the cyclodextrin cavity such that the ortho and weta positions are shielded whDe the para position is accessible. This proposal is supported by observations that para but not ortho disubstituted arenes are well bonded into p-cyclodextrin cavities. The by-product formation of aniline from the amides and of phenol from the carbonate is also markedly reduced for reactions in the presence of the cyclodextrin. 

Phenol acids are phenols in which there is also a carboxylic acid group attached to the benzene ring. They include salicylic acid (ortho-hydroxybenzoic acid) and para-hydroxy-benzoic acid (Figure 25.8). Acetylsalicylic acid (aspirin) and sodium salicylate are derivatives of salicylic acid. Like phenol, they have antipyretic and analgesic properties. The methyl, ethyl and propyl esters of para-hydroxybenzoic acid (parabens) are used as preservatives in pharmaceuticals, cosmetics and foodstuffs. 

Phenols and primary, secondary, and tertiary aromatic amines with free ortho- and/or /wra-positions react readily with thiocyanogen, (SCN)2. SCN enters the position para to the OH or NR2 group, or, if that is occupied, into the orfAtf-position.11,12 In the later case subsequent ring closure may be easy.14,760 For instance, / -toluidine gives 6-methylbenzo[A]thiazole-2-amine, and etyhl / -aminobenzoate gives ethyl 2-aminobenzo[Z ]thiazole-6-carboxylate. 

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