Process for the preparation of 4-hydroxyphenyl 4-hydroxybenzoate

Details Process for the preparation of 4-hydroxyphenyl 4-hydroxybenzoate Process for the preparation of 4-hydroxyphenyl 4-hydroxybenzoate

1987-06-22

1989-08-08

Killos, Paul J.

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

Organic compounds

Carboxylic acid esters

C07C 6988

Patent

active

048554847

ABSTRACT:
A process for the preparation of 4-hydroxyphenyl 4-hydroxy-benzoate by esterification of hydroquinone and p-hydroxybenzoic acid is described, wherein an esterification catalyst is used and wherein the reaction is carried out in a reaction medium in which the reactants are substantially dispersed. The use of the compound, accessible by the above process in high yield and good industrial purity, for the preparation of linear polycarbonates or copolycarbonates is furthermore claimed.

REFERENCES:
patent: 2811461 (1957-10-01), Meyer et al.
patent: 4038250 (1977-07-01), Lind
CA77(22):140738m 1972.
CA97(8):56436s 1982.
CA97(4):24503v 1982.
CA100(16):121877h 1984.

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