Process for preparing a solution of DL-mandelic acid

Details Process for preparing a solution of DL-mandelic acid Process for preparing a solution of DL-mandelic acid

1979-10-09

1981-04-07

Trousof, Natalie

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

Organic compounds

Carboxylic acids and salts thereof

562470, C07B 2000

Patent

active

042608155

ABSTRACT:
A process for preparing a solution of DL-mandelic acid is disclosed. The process consists essentially of heating a solution consisting essentially of an optically active 2-amino-1-butanol mandelate and an alkalizing agent, with or without an alcohol solvent; neutralizing the resulting solution with a mineral acid or a mineral acid salt to precipitate an alkali or alkaline earth metal salt; separating the metal salt; and recovering the solution of DL-mandelic acid.

REFERENCES:
patent: 3686183 (1972-08-01), Dyson
Stoll et al., Helv. Chim. Acta 26, p. 941, (1943).

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