Selective synthesis of 3-methyleneindolin-2-ones by one-pot multicatalytic processes
作者:Ren-Jie Song、Yu Liu、Rong-Jiang Li、Jin-Heng Li
DOI:10.1016/j.tetlet.2009.04.066
日期:2009.7
A novel one-pot multicatalytic route for the synthesis of 3-methyleneindolin-2-ones has been developed involving sequential copper-catalyzed amination and palladium-catalyzed C–H functionalization processes. In the presence of CuI and Pd(OAc)2, a variety of propiolamides underwent the reaction with iodides to afford the corresponding 3-methyleneindolin-2-ones in moderate yields.