Pd-catalyzed and CsF-promoted reaction of bromoalkynes with isocyanides: regioselective synthesis of substituted 5-iminopyrrolones
作者:Yibiao Li、Jian Zhao、Huoji Chen、Bifu Liu、Huanfeng Jiang
DOI:10.1039/c2cc17717j
日期:——
The palladium-catalyzed and CsF-promoted annulation reaction of bromoalkynes and isocyanides regioselectively affords a diverse set of 5-iminopyrrolone derivatives. This chemistry presumably proceeds through the bromoacrylamide intermediates, which can be readily prepared from the nucleophilic addition reaction of isocyanides to bromoalkynes in the presence of CsF.
钯催化的、氟化铯促进的溴代炔烃和异氰化物的环化反应可以选择性地得到多种5-亚胺基吡咯酮衍生物。这一化学过程可能经过溴代丙烯酰胺中间体,这种中间体可以通过异氰化物对溴代炔烃的亲核加成反应在氟化铯存在下容易地制备。