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.
Generation of trifluoromethyl-substituted pyrrolo[3,2-c]quinolines via a copper(II)-catalyzed tandem reaction of N-(σ-iodoaryl)alkynylimines with 2-isocyanoacetates is reported. The process involves a [3 + 2] cycloaddition and intramolecular C–C bond coupling, leading to the fluorine-containing N-heterocycles under mild conditions with high efficiency.
据报道,N-(σ-碘代芳基)烷基炔胺与2-异氰基乙酸酯的铜(II)串联反应生成了三氟甲基取代的吡咯并[3,2- c ]喹啉。该过程涉及[3 + 2]环加成和分子内C–C键耦合,导致在温和条件下高效地产生含氟N-杂环。