Rhodium(III)-Catalyzed [3+2] Annulation of 5-Aryl-2,3-dihydro-1<i>H</i>-pyrroles with Internal Alkynes through C(sp<sup>2</sup>)H/Alkene Functionalization
作者:Ming-Bo Zhou、Rui Pi、Ming Hu、Yuan Yang、Ren-Jie Song、Yuanzhi Xia、Jin-Heng Li
DOI:10.1002/anie.201407175
日期:2014.10.13
This study describes a new rhodium(III)‐catalyzed [3+2] annulation of 5‐aryl‐2,3‐dihydro‐1H‐pyrroles with internal alkynes using a Cu(OAc)2 oxidant for building a spirocyclic ring system, which includes the functionalization of an aryl C(sp2)H bond and addition/protonolysis of an alkene CC bond. This method is applicable to a wide range of 5‐aryl‐2,3‐dihydro‐1H‐pyrroles and internal alkynes, and
这项研究描述了一种新的铑(III)催化的[3- + 2] 5-芳基-2,3-二氢-1H-吡咯与内部炔烃的反应,该反应使用Cu(OAc)2氧化剂构建螺环系统,包括芳基C(SP的官能化2) H成烯烃CC键的键和加法/质子分解。该方法适用于广泛的5-芳基-2,3-二氢-1H-吡咯和内部炔烃,并能以良好的收率合成螺[indene-1,2'-吡咯烷]结构,并获得优异的收率。区域选择性。