Phenyl ether 4- Phenylphenol

Combination of Dowicide AR (Dow Chemical Co., Midland, MI) (o-phenylphenol, Na salt), 0.5 grams and Dowtax 2A1R (Dow Chemical Co.) (dodecylated sulfonated phenyl ether, Na salt), 0.075 grams, both per liter of water. 

A. Preparation of the Phenolic Ether p-(l-Phenyl-5-tetrazolyl-oxy)biphenyl. In a 1-1. round-bottomed flask fitted with an efficient condenser is placed a magnetic bar for stirring. Seventeen grams (0.1 mole) of p-phenylphenol, 18.1 g. (0.1 mole) of... 

Several derivatives of phenols have been found to be especially suited for hydrogenolysis by catalytic hydrogenation. Phenol ethers prepared by the reaction of phenols with l-phenyl-5-chlorotetrazole or with 2-chlorobenzoxazole are hydrogenolyzed over 5% palladium on carbon or over platinum oxide, but not over Raney nickel. The hydrogenations are run at 35 °C in benzene, ethanol or tetrahydrofuran, and give 35-89% yields of the corresponding hydrocarbons. The reaction sequence is exemplified by conversion of phenylphenols to biphenyls (equation 77). 

After the phenoxide solU tion is discharged from the autoclave, it is extracted with chlorobenzene to remove all alkaii-insoluble material, viz., diphenyl ether and phenyl xenyl etter. The reaction mass is then acidified with hydrochloric acid to neutralize excess caustic and to liberate the phenols. The aqueous layer is put through a steaming-out tower to recover all dissolved phenol. The phenol layer is distilled to recover phenol, following which distillation is continued to rescover ortho- and para-phenylphenols which are further purified for sale. 

Phenylethyl acetate 2-Phenylethyl methyl ether 1-Phenyl-3-methyl-3-pentanol 5-Phenyl-1-pentanol o-Phenylphenol... 

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