Photoinduced Nonstabilized Azomethine Ylide Formation for the Preparation of Fluorine Containing Pyrrolidines
作者:Thibault Thierry、Cyril Lebargy、Emmanuel Pfund、Thierry Lequeux
DOI:10.1021/acs.joc.9b00244
日期:2019.5.3
A mild and reproducible method for the formation of a nonstabilized azomethine ylide was developed by photoinduced reaction catalyzed with eosin Y under green light irradiation. Resulting 1,3-dipole was trapped with fluoroalkenes, fluoroalkylated alkenes, and representative dipolarophiles to access pyrrolidine scaffolds, including spirocyclic compounds. The mechanism involved in this transformation
通过曙红Y在绿光照射下的光诱导反应,开发了一种温和且可重现的形成不稳定的偶氮甲碱叶立德的方法。所得的1,3-偶极子被氟代烯烃,氟代烷基化的烯烃和代表性的偶极亲和剂捕获,以进入吡咯烷骨架,包括螺环化合物。研究了参与该转化的机制,清楚地显示了曙红Y的催化氧化还原循环。