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 nucleophilic substitution of o-azidobenzanilides. Among five tested reaction conditions, the cyclization of o-azidobenzanilides catalyzed by sodium hydride in DMF, sequentially followed by the nucleophilic substitution under microwave irradiation, exhibited the optimal results. Moreover, compared
摘要 通过微波辅助碱催化环化和邻叠氮基苯甲酰苯胺的亲核取代,合成了一系列1,2-二取代吲唑-3-酮类化合物。在五种测试的反应条件中,氢化钠在DMF中催化邻叠氮基苯甲酰苯胺环化,然后在微波辐射下进行亲核取代,表现出最佳结果。此外,与常规加热制备的对应物相比,该方法展示了一种更快速、更有效的过程,可以建立用于高通量生物筛选的多样化 1,2-二取代吲唑-3-one 文库。