Process for the manufacture of p-hydroxyphenyl-acetic acid

Details Process for the manufacture of p-hydroxyphenyl-acetic acid Process for the manufacture of p-hydroxyphenyl-acetic acid

1985-04-24

1986-05-20

Killos, Paul J.

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

Organic compounds

Carboxylic acids and salts thereof

C07C 6501

Patent

active

045902950

ABSTRACT:
p-Hydroxyphenylacetic acid is prepared by reduction of p-hydroxymandelic acid with HI in the presence of red phosphorus. According to a preferred embodiment, the reaction is carried out in one vessel in which the mandelic acid is prepared in situ from phenol and glyoxylic acid.

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