Journal
HETEROATOM CHEMISTRY
Volume 15, Issue 1, Pages 15-20Publisher
JOHN WILEY & SONS INC
DOI: 10.1002/hc.10205
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Benzo[b]thiophen-2-yl-hydrazonoesters 4 were synthesized by coupling of 2-diazo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide (1) with either ethyl cyanoacetate or ethyl acetoacetate. The reactivity of 4 toward a variety of nitrogen nucleophiles was investigated to yield pyrazole, isoxazole, pyrimidine, triazine, pyrazolopyridine, and pyrazolopyrimidine derivatives. (C) 2003 Wiley Periodicals. Inc.
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