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, stereoselective synthesis of the bis(3-indolizinyl)ethylene derivatives highly.
3-硫代甲酰基吲哚并在三丁基膦的存在下进行新颖的还原偶联反应,从而以高收率得到E -1,2-双(3-吲哚嗪基)乙烯。这些反应通过(3-吲哚嗪基)亚甲基卡宾中间体进行,并提供了新的立体选择性合成双(3-吲哚嗪基)乙烯衍生物的方法。