Phenethyl alcohol 2-methyl

Allylic and benzylic alcohols were oxidized to aldehydes or ketones with BnPhsPHSOs in refluxing CHsCN. The yield increased in the presence of bismuth chloride in a catalytic amount. Selective oxidation of various alcohols under solvent free conditions was also reported Interestingly, benzyl alcohols were oxidized selectively to benzaldehydes in very high yield (95-100%) when reacted with BnPhsPHSOs (1.2 eq.) and AICI3 (1 eq.) in the presence of an equimolar amount of 2-phenethyl alcohol, diphenyl carbinol or methyl phenyl sulfide (equation 72). [Pg.1031]

Cyclodextrins (sometimes called cycloamyloses) make up a family of cyclic oligosaccharides composed of 5 or more a-D-glucopyranoside units linked 1 —> 4, as in amylose (a fragment of starch), and have been used as activating macrocyclic excipients in nonaqueous biocatalysis. Griebenow et al. observed that lyophilization of methyl-[3-cyclodextrin with subtilisin Carlsberg in a 6 1 weight ratio resulted in a 164-fold rate enhancement in THF for the transesterification rate of sec-phenethyl alcohol with vinyl butyrate (Scheme 3.3) [98]. [Pg.61]

Optically active quaternary ammonium salt (l).2 The salt 1 is obtained by alkylation of triethylamine with (S)-( + )-l-bromo-2-methylbutane (aD + 3.80°) in CH3CN. Methylation of 5ec-phenethyl alcohol (2) with dimethyl sulfate in pentane/ aqueous NaOH with 1 as catalyst gives the methyl ether 3 in 84% yield in 48%... [Pg.239]

Benzyl acetates react with trimethylsilane and CO in the presence of Co2(CO)8 as catalyst to give P-phenethyl alcohols by a one-carbon homologation. The active catalyst is assumed to be (CH3)3SiCo(CO)4. The reaction proceeds under CO at atmospheric pressure at 25°. It fails with benzyl alcohol itself, but is successful with benzyl formate and benzyl methyl ether.5... [Pg.115]

Other selected examples are summarized in Table 1-10. In addition to aldehydes, both cyclic and acyclic ketones can be reduced equally well. jf c-Phenethyl alcohol (59, R=Ph) as hydride source works more effectively than i-PrOH. Based on this finding, the asymmetric MPV reduction of unsymmetrical ketones [63] with chiral alcohol in the presence of catalyst 58 was examined. Treatment of 2-chloroacetophenone (60) with optically pure (f )-(-t-)-sec-phenethyl alcohol (1 equiv) under the influence of catalytic 58 afforded (5)-(-t)-2-chloro-1 -phenyletha-nol (61) with moderate asymmetric induction (82%, 54% ee). Switching chiral alcohols from (/ )-(-f)-sec-phenethyl alcohol to (/ )-(-i-)-a-methyl-2-naphthalene-methanol and (f )-(-H)- fcc-o-bromophenethyl alcohol further enhanced the optical yields of 61 in 70 and 82% ee, respectively [62]. [Pg.28]

Tetra-A-propylammonium perruthenate (TRAP) has been known as a homogenous and versatile reagent for the catalytic oxidation of alcohols. One of the problems in the use of TRAP is its removal from the reaction ntixture. Ley et al. disclosed a system that permits recycling and reuse of TRAP [39]. They used TRAP and alcohol in CH Cl in the presence of l-ethyl-3-methyl-lH-imidazolium hexafluorophosphate ([emim][PFg]) and Et NBr accompanied with A-methylmorpholine A-oxide (NMO) as cooxidant. They demonstrated that both Et NBr and [anim][PF ] may be used to enable the recovery and reuse of TRAP. Also, performing the reaction under moderate oxygen pressure (30-40 bar) in dichloromethane and Et NBr at room temperature resulted in rapid and clean oxidation of sec-phenethyl alcohol. [Pg.380]

Methoxy thoxy) ethoxy ]> ethanol Acetophenone Methyl benzoate Phenyl acetate Methyl salicylate Benzyl methyl ether Phenethyl alcohol Dimet hylaniline Isoamyl propionate Isoamyl lactate Quinoline Indene... [Pg.154]

Mt-Dunetfiylhenzyl Alcohol. at4-Dimethylben-zenemethanol p-tolylmethylcarbinol meihyl-p-tolylcarbi-nol 4 (o-hydroxyethyl)toluene 4-methyl-a-phenethyl alcohol l -p-tolyl-1-ethanol. CjH O m l wt 136.19. C 79.37%, H 8.88%, O 11,75%. Constituent of the essential oil from CurcumQ longa L., Ztngiberaceae and related plants Dieterie, Kaiser. Arch. Pharm. 271, 337 (1933). Prepd from p-tolylmagnesium bromide and acetaldehyde in ether v. [Pg.511]

Acetophenone Methyl benzoate Methyl salicylate Phenethyl alcohol Dimethylaniline Ethylaniline... [Pg.299]

Barger (80) starting from phenethyl alcohol, obtained phenethyl chloride, which, when heated with dimethylamine, yielded dimethyl-phen ethyl amine. By nitration, reduction, diazotization, etc. a base identical with natural hordenine was obtained. Rosenmund (81) condensed p-methoxybenzaldehyde with nitromethane and reduced the alkoxy nitrostyrene to p-methoxyphenethylamine. With methyliodide a mixture of bases was formed from which, after demethylation with boiling hydroiodic acid, hordenine was obtained in low yield. Voswinckel (82) treated p-methoxyphenacyl chloride with dimethylamine, then demethylated and reduced to hordenine. Ehrlich and Pistschimuka (83) started from tyrosol, p-0H-C6H4-CH2CH2OH, converted it to the chloride, which, with dimethylamine gave hordenine. Further synthesis have been elaborated by Spath and Sobel (84) and by Kindler (38). Raoul (67, 69) obtained hordenine in 50 % yield, by methylating tyramine with formaldehyde and formic acid. [Pg.19]

An ale. soln. of a-methyl-a-nitrophenethyl alcohol hydrogenated with Raney-Ni, formaldehyde added, and hydrogenation continued -> a-methyl-a-methylamino-phenethyl alcohol. Y ca. 100%. J. Decombe and D. Patouraux, C. r. (C) 266, 473 (1968). [Pg.379]

Benzene, 1,r-(1,2-ethanediyl-bis(oxy))bis-2,4,6-tribromo. See Bis (tribromophenoxy) ethane Benzene, 1,1 -(1,2-ethanediyl) bis 2,3,4,5,6-pentabromo-. See Decabromodiphenylethane Benzeneethanimidoyl chloride, N,4-dihydroxy-o-OXO-. See 2-(p-Hydroxyphenyl) glyoxylohydroximoyl chloride Benzeneethanol. See Phenethyl alcohol Benzeneethanol, p-methyl-. See 2-Phenyl propanol-1... [Pg.430]

CAS 10402-52-5 EINECS/ELINCS 233-871-2 Synonyms Hydrotropic acetate 1-Methyl phenethyl acetate P-Methylphenethyl acetate Phenethyl alcohol, P-methyl-, acetate 2-Phenyl propyl acetate Empirical C11H14O2... [Pg.2055]

Methyl benzyl alcohol. SeeCresyl alcohol o-Methylbenzyl alcohol CAS 98-85-1 EINECS/ELINCS 202-707-1 UN 2937 (DOT) FEMA 2685 Synonyms Benzenemethanol, a-methyl- Ethanol, 1-phenyl- Methyl phenylcarbinol Methylphenylmethanol a-Phenethyl alcohol s-Phenethyl alcohol 1-Phenylethanol a-Phenylethyl alcohol Phenylmethylcarbinol Styrallyl alcohol Styralyl alcohol Empirical CsHioO Formula C6H5CH(CH3)OH Properties Colorless liq. mild floral odor sol. in alcohol, glycerol, min. oil, oxygenated and hydrocarbon soivs. si. sol. in water m.w. 122.17 dens. 1.009-1.014 vapor pressure 0.1 mm (20 C) ... [Pg.2591]

Phenethyl alcohol, p-methyl-, acetate. See Hydratropyl acetate Phenethyl alcohol, p-nitro-. See p-Nitrophenethyl alcohol... [Pg.3283]

Perillyl alcohol Petitgrain oil a-Phellandrene (+)-a-Phellandrene Phenethyl anthranilate Phenethyl benzoate Phenethyl butyrate Phenethyl cinnamate Phenethyl crotonate Phenethyl 2-ethyl butyrate Phenethyl formate Phenethyl isobutyrate Phenethyl isothiocyanate Phenethyl isovalerate Phenethyl methacrylate Phenethyl 2-methyl butyrate Phenethyl methyl ethyl carbinyl acetate Phenethyl phenylacetate Phenethyl pivalate Phenethyl propionate... [Pg.5324]

Octyl acetate Pentane-2,3-dione Phenethyl alcohol Phenylacetaldehyde 2-Phenylethyl methyl ether... [Pg.5330]

The aroma compounds studied during the biological ageing of Fino wines belong to different chemical families. The higher alcohols determined were methanol, 2-butanol, 1-propanol, isobutanol, 1-butanol, isoamyl alcohols, 1-pentanol, 3- and 4-methyl-l-pentanol, 1-hexanol, 3-ethoxy-l-propanol, Z-3-hexenol, 1-heptanol, 1-octanol, furfuryl alcohol, 2, 3-butanediol, 1-decanol, benzyl alcohol and phenethyl alcohol. [Pg.99]

Benzyl methyl ether p-Methylanisole p-Ethylphenol Phenethyl alcohol Phenetole... [Pg.66]

Heptyl alcohol Acetophenone Methyl benzoate Phenyl acetate Benzyl methyl ether Phenethyl alcohol... [Pg.118]

Ethyl acetoacetate Caproic acid Benzoic acid o-Nitro toluene Benzyl alcohol 7n-Cresol o-Cresol p-Cresol Methylaniline w-Toluidine p-Toluidine Ethyl malonate Acetophenone Methyl benzoate Methyl salicylate Phenethyl alcohol Dimethylaniline Ethylaniline Octyl alcohol... [Pg.155]

Methyl benzoate Phenyl acetate Phenethyl alcohol 2,4-Xylenol m-Dimethoxybenzene Veratrole Dimethylaniline Ethylaniline Ethyl fumarate Ethyl maleate 2-Ethylcaproic acid Isoamyl lactate Octyl alcohol cc-Octyl alcohol Bis(2-ethoxyethyl) ether Indene... [Pg.204]

Major constituents of the absolute include ethyl palmitate (14.56%), linalool (10.91%), methyl linoleate (7.13%), ethyl stearate (3.67%), ethyl oleate (4.86%), methyl linole-nate (1.53%), phenethyl alcohol (1.30%), and at least 50 additional, mostly ubiquitous, volatile components plus caproic, caprylic, cap-ric, lauric, myristic, palmitic, stearic, oleic, linoleic, and linolenic acids. Occurrence of... [Pg.314]

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