Synthesis of 2,1-Benzoisoxazole-Containing 1,2,3-Triazoles through Copper-Catalyzed Three-Component Domino Reactions of <i>o</i>-Bromoacetophenones, Aldehydes, and Sodium Azide
作者:Yuwei Wang、Pei Yu、Qingyun Ren、Fengcheng Jia、Yunfeng Chen、Anxin Wu
DOI:10.1021/acs.joc.9b02865
日期:2020.2.21
We herein describe an efficient copper-catalyzed three-component domino protocol used to prepare 2,1-benzoisoxazole-containing 1,2,3-triazoles from commercially available o-bromoacetophenones, aldehydes, and sodium azide. This domino process involves Aldol condensation, copper-catalyzed azide-chalcone oxidative cyclization, 1,2,3-triazole-assisted azidation, and denitrogenative cyclization sequences
我们在本文中描述了一种有效的铜催化三组分多米诺方案,该方案用于从可商购的邻溴代苯乙酮,醛和叠氮化钠制备含2,1-苯并异恶唑的1,2,3-三唑。该多米诺过程涉及Aldol缩合,铜催化的叠氮化物-查耳酮氧化环化,1,2,3-三唑辅助的叠氮化和脱氮环化序列。所形成的化合物可以被认为是苯并[c]异恶唑官能化的康维他汀A-4三唑类似物,在发现新的抗癌剂方面可能具有潜在的应用。