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Application

3906229/04, 1985-06-05

(22)

Actual filing date

1985-06-05

(45)

Published

1994-03-30

(72)

Inventor

Trofimov B.A.Gritsa A.I.Skvortsov Ju.M.Mal'Kina A.G.Istomina S.N.

METHOD OF SYNTHESIS OF 4-HYDROXY-4-METHYL-2-PENTINOIC ACID METHYL ESTER Russian patent published in 1994 - IPC

Abstract SU 1340056 A1

FIELD: organic chemistry, unsaturated acids. SUBSTANCE: the end product is synthesized by carbonylation of 1-methyl-1-butyne-3-ol with carbon monoxide in the medium of methanol under atmospheric pressure in the presence of system CuCl2/CH3COONa as a catalyst at 20-29 C. Methanol, 3-methyl-1-butyne-3-ol, copper chloride and sodium acetate are added at molar ratio 5: 0.02: (0.06-0.08): (0.06-0.08). Yield of the end product is 43-32% as compared with 17-20% by known method. EFFECT: enhanced yield of the end product.

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SU 1 340 056 A1

Authors

Trofimov B.A.

Gritsa A.I.

Skvortsov Ju.M.

Mal'Kina A.G.

Istomina S.N.

Dates

1994-03-30—Published

1985-06-05—Filed

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