Rh(III)-Catalyzed Carbocyclization of 3-(Indolin-1-yl)-3-oxopropanenitriles with Alkynes and Alkenes through C–H Activation
作者:Tao Zhou、Yanwei Wang、Bin Li、Baiquan Wang
DOI:10.1021/acs.orglett.6b02521
日期:2016.10.7
of 3-(indolin-1-yl)-3-oxopropanenitriles with alkynes and alkenes have been developed to form 1,7-fused indolines through C–H activation. These reactions have a broad range of substrates and high yields. Unsymmetrical aryl–alkyl substituted alkynes proceeded smoothly with high regioselectivity. Electron-rich alkynes could undergo further oxidative coupling reaction to form polycyclic compounds. For alkenes
Rh(III)催化的3-(吲哚-1-基)-3-氧代丙烷腈与炔烃和烯烃的碳环化反应已通过C–H活化形成1,7-稠合的二氢吲哚。这些反应具有广泛的底物范围和高产率。不对称的芳基-烷基取代的炔烃以高区域选择性顺利进行。富电子炔烃可能会进一步发生氧化偶联反应,形成多环化合物。对于烯烃,1,2-二氢-4- ħ吡咯并[3,2,1- IJ ]喹啉-4-酮通过C(SP形成2)-H键烯基和C(SP 2)-H,C( sp 3)–H氧化偶联反应。