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2 102 382

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C1

(51)

IPC

(21) (22)

Application

96105444/04, 1996-03-21

(22)

Actual filing date

1996-03-21

(45)

Published

1998-01-20

(72)

Inventor

Orlov S.I.Chernyshev V.P.Gorjacheva L.V.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Shchelkovskoe Predprijatie

METHOD OF PREPARING 3-BROMO-4-METHYLANILINE Russian patent published in 1998 - IPC

Abstract RU 2102382 C1

FIELD: chemical industry. SUBSTANCE: present invention describes method of preparing borminated anilines, more particularly semiproduct or organic synthesis. The claimed method comprises brominating 4-nitrotoluene with bromine at 100-120 C in the presence of iron under vigorous stirring at Re of 1500-2500, introducing bromine under layer of 4-nitrotoluene, subsequently dissolving reaction mixture in benzene and reducing it at boiling temperature, gradually adding of benzene solution of brominated reaction mixture to iron suspension in water. Acid used for reducing 2-bromo-4-nitrotoluene is hydrogen bromide present in brominated reaction mixture. EFFECT: more efficient preparation method. 2 cl

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RU 2 102 382 C1

Authors

Orlov S.I.

Chernyshev V.P.

Gorjacheva L.V.

Dates

1998-01-20—Published

1996-03-21—Filed

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