Microwave-Assisted Base-Catalyzed Cyclization and Nucleophilic Substitution of<i>O</i>-Azidobenzanilides to Synthesize 1,2-Disubstituted Indazol-3-ones
作者:Arthur Y. Shaw、Yi-Ru Chen、Chia-Hua Tsai
DOI:10.1080/00397910802663386
日期:2009.7.7
of 1,2-disubstituted indazol-3-ones were synthesized by microwave-assisted base-catalyzed cyclization and nucleophilicsubstitution of o-azidobenzanilides. Among five tested reaction conditions, the cyclization of o-azidobenzanilides catalyzed by sodium hydride in DMF, sequentially followed by the nucleophilicsubstitution under microwave irradiation, exhibited the optimal results. Moreover, compared