Synthesis of Benzo[<i>c</i>]thiophene Analogs Containing Benzimidazole, Benzothiazole, and Oxazole
作者:J. Arul Clement、Pethaiah Gunasekaran、Arasambattu K. Mohanakrishnan
DOI:10.1080/00397910902763912
日期:2009.8.20
Iodine-mediated cyclization of benzo[c]thiophene aldehyde with 1,2-diphenylamine/2-aminophenylthiol led to the formation of benzimidazole/benzothiazole-incorporated benzo[c]thiophenes. Similarly, reaction of benzo[c]thiophene aldehyde with p-toluenesulfonylmethyl isocyanide (TOSMIC) reagent in the presence of K2CO3 as a base furnished oxazole-containing benzo[c]thiopheneanalogs.