Synthesis of 6-trifluoromethylindolo[1,2-c]quinazolines and related heterocycles using N-(2-iodophenyl)trifluoroacetimidoyl chlorides as starting material via C–H bond functionalization
A mild, two-step reaction for the synthesis of 6-trifluoromethylindolo[1,2-c]quinazolines from readily available indoles and N-(2-iodophenyl)trifluoroacetimidoyl chlorides via addition-elimination/arylation is described. An array of aza-fused trifluoromethylated heterocycles can be easily assembled via Friedel-Crafts reaction/C-H bond activation by this methodology.
A Novel Method for the Synthesis of 2-Trifluoromethylindoles from N-(o-Haloaryl)alkynylimines
作者:Yongming Wu、Yuefa Gong、Zixian Chen、Jiangtao Zhu、Haibo Xie、Shan Li
DOI:10.1055/s-0029-1219904
日期:2010.6
Treatment of various types of N-(o-haloaryl)-alkynylimines in the presence of Pd(PPh3)2Cl2 gave 2-trifluoromethylindoles in high yields. This approach provides a novel and facile access to the biologically important fluorine-containing indole derivatives.