Copper-Catalyzed Aerobic Intramolecular Carbo- and Amino-Oxygenation of Alkynes for Synthesis of Azaheterocycles
作者:Kah Kah Toh、Stephen Sanjaya、Sophian Sahnoun、Sin Yee Chong、Shunsuke Chiba
DOI:10.1021/ol3007106
日期:2012.5.4
A synthetic method of highly substituted quinolines has been developed from N-(2-alkynylaryl)enamine carboxylates under Cu-catalyzed aerobic conditions via intramolecular carbo-oxygenation of alkynes. This strategy was further applied for N-alkynylamidines for amino-oxygenation of alkynes, leading to imidazole and quinazoline derivatives.