Process for the preparation of 2,3-dichloro-4-(2-thenoyl)...

C - Chemistry – Metallurgy – 07 – D

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260/329.4

C07D 333/12 (2006.01) C07D 333/22 (2006.01)

Patent

CA 1089475

ROLLAND CASE 1 ABSTRACT OF THE DISCLOSURE According to the process of the invention, a diacid or diester of the following formula is decarboxylated by heating: Image in which R represents H or an alkyl group, optionally followed by hydrolysis. The 2,3-dichloro-4-(2-thenoyl) phenoxyacetic acid pre- pared in this way is a valuable diuretic and uricosuric agent.

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