Process for preparing thiazolazo compounds

Details Process for preparing thiazolazo compounds Process for preparing thiazolazo compounds

C - Chemistry, Metallurgy

09

B

260/171.6, 260/1

C09B 29/06 (2006.01) C09B 29/00 (2006.01) C09B 29/36 (2006.01) C09B 44/10 (2006.01) C09B 44/20 (2006.01)

Patent

CA 1059120

Abstract of Disclosure: A process for the direct preparation of pure thiazolazo compounds had been found with the use of a 2-aminothiazole as diazo or azo component in a coupling process wherein the 2-aminothiazole used therein is subjected to the usual coupling reaction, if used as diazocomponent after diazotation, without intermediate isolation after its preparation in know manner. This process avoids the preparation of the 2-amino- thiazoles as starting compounds in its solid form and the expensive purification of these instable compounds and yields now very pure azo products.

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