The stereoselective synthesis of<i>e</i>-1,2-bis(3-indolizinyl)ethylenes by the reactions of 3-thioformylindolizines with<i>n</i>-tributylphosphine
作者:Weiwei Liu、Yueqiang Zhao、Shujiang Tu、Ting He、Hongwen Hu
DOI:10.1002/jhet.5570450509
日期:2008.9
3-Thioformylindolizines undergo novel reductive coupling reaction in the presence of tributylphosphine to give E-1,2-bis(3-indolizinyl)ethylenes in high yield. These reactions proceed via (3-indolizinyl)methylene carbene intermediate and provide a new, stereoselectivesynthesis of the bis(3-indolizinyl)ethylene derivatives highly.