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2 047 591

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C1

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IPC

(21) (22)

Application

5041660/04, 1992-01-22

(22)

Actual filing date

1992-01-22

(45)

Published

1995-11-10

(72)

Inventor

Tsvetkova T.M.Kononuchenko L.A.Garanzha M.V.Romanenko V.P.Vysochin A.P.

(73)

Holder

Belgorodskij Filial Vsesojuznogo Nauchno-Issledovatel'Skogo Vitaminnogo Instituta

PROCESS FOR PREPARING 4-HALOGEN-3-METHYL-3-OXYBUTENE Russian patent published in 1995 - IPC

Abstract RU 2047591 C1

FIELD: as syntone in the preparation of biologically active components and in the synthesis of vitamin A. SUBSTANCE: reagent 1: isoprene. Reagent 2: N-halogensuccinamide. Reaction conditions: in a solvent selected from the group consisting of acetonitrile, hexamethylphosphorus triamide, dimethylformamide; temperature is 20-25 C. EFFECT: more efficient preparation process.

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RU 2 047 591 C1

Authors

Tsvetkova T.M.

Kononuchenko L.A.

Garanzha M.V.

Romanenko V.P.

Vysochin A.P.

Dates

1995-11-10—Published

1992-01-22—Filed

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