Oxidative Pd(II)-Catalyzed C−H Bond Amination to Carbazole at Ambient Temperature
作者:James A. Jordan-Hore、Carin C. C. Johansson、Moises Gulias、Elizabeth M. Beck、Matthew J. Gaunt
DOI:10.1021/ja806543s
日期:2008.12.3
We report a new Pd(II)-catalyzed C-H bond amination reaction to form carbazoles, an important motif that is prevalent in a range of systems. The catalytic amination process operates under extremely mild conditions and produces carbazole products in good to excellent yields. Carbazoles possessing complex moleculararchitecture can also be formed using this reaction, highlighting its potential in natural
An efficient Au-catalyzed synthesis of isomukonidine, clausine L, mukonidine, glycosinine, mukonal, and clausine V from propadienyl methyl ether
作者:Youai Qiu、Dengke Ma、Chunling Fu、Shengming Ma
DOI:10.1039/c2ob27432a
日期:——
Naturally occurring carbazole alkaloids such as isomukonidine, clausine L, mukonidine, glycosinine, mukonal, and clausine V have been synthesized through a gold-catalyzed cyclization reaction of 1-(indol-2-yl)-2-methoxy-2,3-allenols, which are readily available from indolecarbaldehydes and methoxypropadiene. Compared to the reported procedures, our approach is general, atom economic, highly selective, and the starting materials are easily available.