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Application

5009794/04, 1991-11-21

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Actual filing date

1991-11-21

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Published

1996-01-27

(72)

Inventor

Andrievskij A.M.Popov S.I.Kukushkina M.L.Kobrinskij I.A.Lapin Ju.A.Avidon S.V.Glushchenko S.N.

(73)

Holder

Moskovskoe Nauchno-Proizvodstvennoe Ob"Edinenie

METHOD FOR PRODUCTION OF 6-BROM-2-AMINO-4-NITROPHENOL Russian patent published in 1996 - IPC

Abstract RU 2053222 C1

FIELD: chemical industry. SUBSTANCE: method is carried out by reduction of 6-brom-2,4-dinitrophenol. The latter compound is prepared by simultaneously nitration and bromination of chlorobenzene. The process is followed by hydrolysis thus prepared 2-brom-4,6-dinitrochlorobenzene with the help of aqueous alkali at 70-95 C. Said hydrolysis may be carried out in aqueous-ammonium medium with the help of ammonium sulfide or sulfides of alkali metal. EFFECT: improves efficiency of method.

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RU 2 053 222 C1

Authors

Andrievskij A.M.

Popov S.I.

Kukushkina M.L.

Kobrinskij I.A.

Lapin Ju.A.

Avidon S.V.

Glushchenko S.N.

Dates

1996-01-27—Published

1991-11-21—Filed

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