METHOD OF SYNTHESIS OF THIOGLYCOLIC ACID SALTS AS AQUEOUS SOLUTIONS Russian patent published in 1995 - IPC

Abstract RU 2047601 C1

FIELD: organic chemistry. SUBSTANCE: product: thioglycolic acid salts as solutions, yield is 94.3% Reagent 1: monochloroacetic acid. Reagent 2: ammonium thiocyanate. Reaction conditions: ammonium thiocyanate is taken at stoichiometric ratio with respect to monochloroacetic acid. Reagent 3: ammonia aqueous solution or monoethanolamine or their mixture. Reaction conditions: ammonia or monoethanolamine were taken as 3-3.5 mole per 1 mole monochloroacetic acid, at 40-120 C. EFFECT: improved method of synthesis. 2 cl

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RU 2 047 601 C1

Authors

Akhmetzhanov I.S.

Menjajlo A.I.

Jakovleva V.I.

Merkulova L.V.

Dates

1995-11-10—Published

1992-05-29—Filed