Process for the preparation and purification of D-hydroxyphenoxy

Details Process for the preparation and purification of D-hydroxyphenoxy Process for the preparation and purification of D-hydroxyphenoxy

1989-07-20

1991-01-01

Killos, Paul J.

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

Organic compounds

Carboxylic acids and salts thereof

560 61, C07C 5948

Patent

active

049819984

ABSTRACT:
A process for the preparation of D-hydroxyphenoxypropionic acid and its purification from its reaction mixture containing the acid, together with inorganic salts and various organic impurities, by crystallization of D-hydroxyphenoxypropionic acid by cooling followed by washing the crystals of D-hydroxyphenoxypropionic acid by elution.

REFERENCES:
patent: 4532346 (1985-07-01), Rehn

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