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2 041 199

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Application

5039231/04, 1992-05-28

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Actual filing date

1992-05-28

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Published

1995-08-09

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Inventor

Bakibaev A.A.Tignibidina L.G.Shtrykova V.V.Filimonov V.D.Blinov P.A.Bychkov I.A.Sologub A.P.Novozheeva T.P.

(73)

Holder

Tovarishchestvo S Ogranichennoj Otvetstvennost'Ju

PROCESS FOR PREPARING METHA-CHLOROBENZOYL CHLORIDE Russian patent published in 1995 - IPC

Abstract RU 2041199 C1

FIELD: organic chemistry. SUBSTANCE: the process comprises chlorination (by adding droplets) with a chlorinating agent (CHA) (inorganic acid chloride) of a mixtture of metha-benzoic acid (m-CBA) and a neutral organic solvent such as hydrogen sulfide (HS) or halogenated organic solvent (HOS) on heating in the presence of a dimethylformamide (DMFA) catalyst at a M- CBA to CHA to HOS or HS to DMFA ratio of (0.5-2):(0.5- 2):(0.02-0.15). EFFECT: more efficient preparation process. 3 tbl

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RU 2 041 199 C1

Authors

Bakibaev A.A.

Tignibidina L.G.

Shtrykova V.V.

Filimonov V.D.

Blinov P.A.

Bychkov I.A.

Sologub A.P.

Novozheeva T.P.

Dates

1995-08-09—Published

1992-05-28—Filed

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