Process for the preparation of phenoxypropionic acids and their

Details Process for the preparation of phenoxypropionic acids and their Process for the preparation of phenoxypropionic acids and their

1980-05-30

1982-01-05

Randolph, John D.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

71 94, 71114, 546335, 560 61, 560 62, 562471, 562472, C07D21344

Patent

active

043095470

ABSTRACT:
Process for the preparation of (phenoxy- or benzyl-)-phenoxypropionic acids by simultaneous addition of 2-chloropropionic acid (ester) and the double molar amount of an aqueous alkali hydroxide to a solution of a phenoxyphenol or benzylphenol in a solvent forming an azeotropic mixture with water, while continuously distilling off the water formed or introduced.

REFERENCES:
patent: 3968143 (1976-07-01), Schact et al.
patent: 4134753 (1979-01-01), Horlein et al.
patent: 4153803 (1979-05-01), Thiele et al.
patent: 4173709 (1979-11-01), Metivier et al.

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