Process for separating t-butylated phenols

Details Process for separating t-butylated phenols Process for separating t-butylated phenols

1982-04-26

1983-12-27

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568749, 568750, 568751, 568784, C07C 3768

Patent

active

044232535

ABSTRACT:
A process is disclosed for separating t-butylated phenolic compounds from other t-butylated and unbutylated phenolics by treating a mixture of the phenolics with a metal halide salt. The metal halide salt preferentially forms a complex with one of the phenolics over other related phenolics in the mixture. The preferentially-formed complex of one of the phenolics may then be isolated from the mixture and the complex decomposed to provide a product substantially enriched in, or substantially entirely composed of, one phenolic. The process is particularly suitable for resolving a mixture comprising phenol or cresol from their ortho-t-butylated derivatives, or a mixture of two isomeric t-butylated phenols or cresols or a mixture of mono- and di-t-butylated phenols or cresols.

REFERENCES:
patent: 3341607 (1967-09-01), Leston
patent: 4267389 (1981-05-01), Leston
patent: 4267390 (1981-05-01), Leston
patent: 4267391 (1981-05-01), Leston
patent: 4267392 (1981-05-01), Leston
Sharpless et al., "J. Org. Chem." vol. 40 (1975), pp. 1252-1257.

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