Dual Behavior of Isatin-Based Cyclic Ketimines with Dicarbomethoxy Carbene: Expedient Synthesis of Highly Functionalized Spirooxindolyl Oxazolidines and Pyrrolines
作者:T. Rajasekaran、G. Karthik、B. Sridhar、B. V. Subba Reddy
DOI:10.1021/ol400287q
日期:2013.4.5
devised for the synthesis of a wide range of spirooxindolyl oxazolidines via an intermolecular 1,3-dipolarcycloaddition of carbonyl ylides generated from dimethyl diazomalonate and aromatic aldehydes, with cyclic ketimines using 5 mol % of Rh2(OAc)4 under mild conditions. Similarly, highly functionalized spirooxindolyl pyrrolines have also been prepared through1,3-dipolarcycloaddition of azomethine