Versatile Synthesis of N,S-Heterocycles Containing the Antipyrine Moiety
作者:E. Abdel-Latif
DOI:10.1080/104265090969054
日期:2006.1.1
A series of novel sulfide derivatives of expected biological activity were synthesized via the reaction of 4-(chloroacetyl)antipyrine (1) with several sulfur nucleophiles. The quantitatively available 2-aminothiazole derivatives 10 and 11 were coupled with pyrazolopyridinyl and aromatic diazonium salts to furnish a new series of the corresponding pyrazolopyridinylazo and arylazo-thiazole dyes 12 and