P-Phenylethyl alcohol

The alcohol may be purified by conversion into the calcium chloride addition compound. Treat it with anhydrous calcium chloride much heat is evolved and the addition compound is formed. After several hours, remove any oil which has not reacted by washing witli petroleum ether (b.p. 60-80°). Decompose the solid with ice water, separate the alcohol, dry and distil. 

Aromatic alcohols are insoluble in water and usually burn with a smoky flame. Their boiling points are comparatively high some are solids at the ordinary temperature. Many may be oxidised by cautious addition of dilute nitric acid to the corresponding aldehyde upon neutralis-tion of the excess of acid, the aldehyde may be isolated by ether extraction or steam distillation, and then identified as detailed under Aromatic Aldehydes, Section IV,135. 

Mo aromatic alcohols exhibit the majority of the reactions given under Aliphatic Alcohols, Section 111,27, and may be converted into crystalline derivatives as there described. 

Alcohol BP. M.P. 3 5-Dlnltro-benzoate p-Nitro- benzoate Phenyl- urethane a-Naph- thyl- nrethane Hydrogen 3-nitro- pbtbalate Other Derivatives 

COMPOUNDS DERIVED FROM AROMATIC SULPHONIC ACIDS 

Benzyl. pPhenylethyl. Methylphenyl carbinol (1). Ethylphenyl carbinol (2) n Propylphenyl carbinol (3) n-Butylphcnyl carbinol (4). Diphenyl carbinol (5) y-Phenyl-n-propyl (6). Triphenyl carbinol 

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Styrene may be conveniently prepared in the laboratory by heating p-phenylethyl alcohol (Section IV,204) with sohd sodium or potassium hydroxide when an almost quantitative dehydration occurs ... 

In a 250 ml. distilling flask (1) place 122 g. (119 ml.) of p-phenylethyl alcohol and 40 g. of sodium hydroxide peUets (or 56 g. of potassium hydroxide). Heat is evolved. Warm gently until bubbles commence to form and the mixture separates into two sharply-defined layers. Distil slowly water, etc. passes over first accompamed by the gradual dis appearance of the upper phase. FinaUy the styrene passes over at 140 160° (mainly 150°) coUect this separately in a receiver containing about 0 1 g. of hydroquinone. Dry the distillate with a httle anhydrous calcium chloride or magnesium sulphate, and then distil under reduced pressure (2). C oUect the pure styrene at 42-43°/18 mm. The 3rield is 80 g. Add about 0-2 g. of hydroquinone (anti-oxidant) if it is desired to keep the phenylethylene. 

Benzyl Alcohol and p-Phenylethyl Alcohols" ia ECT 1st ed., Vol. 2, pp. 483—489, by H. L. Simons and E. E. Polger, Harold L. Simons, Inc. (Benzyl alcohol), and E. T. Theimer, van Ametingen-Haebler, Inc. (P-Phenylethyl alcohol) "Benzyl Alcohol and P-Phenylethyl Alcohol" ia ECT 2nd ed., pp. 442—449, by William E. Ringk, Benzol Products Company (Benzyl alcohol), and E. T. Theimer, International Elavors Eragrances, Inc. (P-Phenylethyl... 

Air Products, USA., has developed bis-(2-methoxy ethyl) aminosulphur trifluoride as a cost effective, safe, stable fluorinating agent, made by reaction of di-2-methylethylamine with sulphur tetrafluoride and trade named Deoxo-Fluor, which replaces the more temperamental diethylaminesulphur trifluoride. Thus, p-phenylethyl alcohol was converted to P-phenylethyl fluoride in 85% yield (Stinson, 1999). 

P-Phenylethyl alcohol, 812,816 Phenylethylene, 1015,1024 a-Phenylethylamine, 560, 566 P-Phenylethy,amine, 560, 567,569 Phenylethylbarbituric acid, 1003,1005 P-Phenylethyl bromide, 283 P-Phenylethyl iodide, 288 Phenylglycine-o-carboxylic acid, 980 Phenylglyoxal, 866 Phenylhydrazine, 635, 636 hydrochloride, 636, 637 Phenylhydrazine acetate reagent, 343, 721 ... 

Benzeneethanol benzyl carbinol benzylmethanol p-hydroxy-ethyl benzene PEA phenethanol p-phenylethyl alcohol 2-phenylethyl alcohol phenylethanol. 

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