Synthesis of Dihydrothienopyridine Derivatives Fused with Triazole Rings

Abstract

New dihydro[3,2‐c][1,2,4]triazolo[4,3‐a]pyridines were synthesized by the reaction of 4‐(methylsulfanyl)‐6,7‐dihydrothieno[3,2‐c]pyridine with acid hydrazides. One bis(dihydrothienotriazolo‐pyridine) was also prepared. In a few cases, the corresponding intermediate could be detected by LC‐MS. The bromophenyl derivative was involved in Suzuki and Sonogashira cross‐coupling reactions. © 2013 Wiley Periodicals, Inc. Heteroatom Chem 24:226–233, 2013; View this article online at http://wileyonlinelibrary.com. DOI 10.1002/hc.21087