Process for producing chlorosulfonylbenzoyl chloride

Details Process for producing chlorosulfonylbenzoyl chloride Process for producing chlorosulfonylbenzoyl chloride

C - Chemistry, Metallurgy

07

D

260/538.2

C07D 327/04 (2006.01) C07D 275/06 (2006.01)

Patent

CA 1056851

ABSTRACT OF THE DISCLOSURE A process for producing a chlorosulfonylbenzoylchloride having the general formula: Image wherein X represents a hydrogen atom, a halogen atom or nitro group, comprises reacting phosgene with an aromatic sulfocarboxylic acid having the general formula Image (I) where X is as stated above or an alkali metal salt or alkaline earth metal salt of an aromatic sulfocarboxylic acid of the general formula (I) in the presence of dimethylformamide.

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