作者:Anup Bhunia、Trinadh Kaicharla、Digvijay Porwal、Rajesh G. Gonnade、Akkattu T. Biju
DOI:10.1039/c4cc05420b
日期:——
heterocycles, the reactions in which phosphines are incorporated into the final product are rare, and the reports on phosphine addition to highly electrophilic arynes are scarce. Herein, we report the phosphine triggered multicomponent reaction of arynes and aldehydes, which takes place via the formal [3+2] cycloaddition of an initially generated 1,3-phosphonium zwitterion from phosphines and arynes with aldehydes
尽管亲核膦催化是构建各种碳环和杂环的有力工具,但最终产物中掺入膦的反应却很少,而且关于将膦添加到高度亲电的芳烃中的报道很少。在本文中,我们报告了膦引发的芳烃和醛的多组分反应,该反应是通过从膦和芳烃与醛的最初生成的1,3-phosph两性离子的正式[3 + 2]环加成反应而发生的。基于苯并恶唑磷体系,该反应以高收率形成了多种范围的稳定的五价phosphor烷。