Rh(III)-Catalyzed Addition of Alkenyl C–H Bond to Isocyanates and Intramolecular Cyclization: Direct Synthesis 5-Ylidenepyrrol-2(5<i>H</i>)-ones
作者:Wei Hou、Bing Zhou、Yaxi Yang、Huijin Feng、Yuanchao Li
DOI:10.1021/ol4003674
日期:2013.4.19
The rhodium-catalyzed addition of an alkenyl C–H bond to isocyanates via sp2 C–H bond activation followed by an intramolecular cyclization is described. This atom-economic and catalytic reaction affords a simple and straightforward access to biologically relevant 5-ylidene pyrrol-2(5H)-ones and can be carried out under mild and neutral conditions in the absence of any additives and environmentally