Process for preparing p,p'-biphenol of high purity

Details Process for preparing p,p'-biphenol of high purity Process for preparing p,p'-biphenol of high purity

1979-01-02

1980-05-27

Morgenstern, Norman

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

Organic compounds

Oxygen containing

568805, C07C 3700

Patent

active

042051878

ABSTRACT:
A process for preparing p,p'-biphenol is provided which comprises heating a 4,4'-bis(substituted phenol) at elevated temperatures below the decomposition temperature of p,p'-biphenol in the absence of a catalyst under an inert, non-reactive atmosphere for the length of time sufficient to obtain a reaction product containing a substantial amount of p,p'-biphenol while, preferably, removing the olefin by-product formed and then recovering the p,p'-biphenol product.

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Jones et al., "Ind. Eng. Chem.", vol. 44, No. 12, pp. 2872-2876 (1952).
Jones et al., "Ind. Eng. Chem.", vol. 45, No. 12, pp. 2704-2705 (1953).

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