Process for the production of aromatic sulfonyl chloride...

Details Process for the production of aromatic sulfonyl chloride... Process for the production of aromatic sulfonyl chloride...

C - Chemistry, Metallurgy

07

C

260/179, 260/396

C07C 113/04 (1985.01)

Patent

CA 1228066

SO-1-36587C/YT/84. ABSTRACT OF THE DISCLOSURE A process for the production of an aromatic sulfonyl chloride having a quinonediazido group is described, comprising reacting a sulfonic acid or its salt represented by the formula (I), Ri-Ar-(SO3M)j, wherein all the symbols are as defined in the appended claims, with phosgene in the presence of a catalyst, whereupon an aromatic sulfonyl chloride having a quinone- diazido group of the formula (II), Ri-Ar-(SO2C?)j, is obtained. In accordance with the present invention, the desired sulfonyl chloride can be prepared by a simplified procedure and further in a high yield.

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