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2 053 221

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Application

5009797/04, 1991-11-21

(22)

Actual filing date

1991-11-21

(45)

Published

1996-01-27

(72)

Inventor

Andrievskij A.M.Glushchenko S.N.Avidon S.V.Grekhova N.G.

(73)

Holder

Moskovskoe Nauchno-Proizvodstvennoe Ob"Edinenie

METHOD FOR PRODUCTION OF 6-BROM-2,4-DINITROPHENOL Russian patent published in 1996 - IPC

Abstract RU 2053221 C1

FIELD: organic chemistry. SUBSTANCE: bromobenzene is treated by mixture which contains brominating agent, nitric acid or nitrate of alkali metal and sulfuric acid. Thus prepared 1,2-dibrom-3,5-dinitrobenzene is hydrolyzed at 60-65 C by aqueous alkali. Said brominating agent is chosen of group which includes bromine, bromide of alkali metal and ammonium bromide. EFFECT: improves efficiency of method.

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RU 2 053 221 C1

Authors

Andrievskij A.M.

Glushchenko S.N.

Avidon S.V.

Grekhova N.G.

Dates

1996-01-27—Published

1991-11-21—Filed

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