A novel synthesis of diverse 2-amino-5-hydroxy-4H-chromene derivatives with a spirooxindole nucleus by Ca(OH)2-mediated three-component reactions of substituted resorcinols with isatins and malononitrile
作者:Ji Hyang Park、Yong Rok Lee、Sung Hong Kim
DOI:10.1016/j.tet.2013.09.021
日期:2013.11
An efficient and facile one-pot synthesis is described for the preparation of novel 2-amino-5-hydroxy-4H-chromene derivatives with a spirooxindole nucleus using Ca(OH)2-mediated three-component reactions of substituted resorcinols with isatins and malononitrile. This simple method provided a variety of biologically interesting diverse 2-amino-5-hydroxy-4H-chromene derivatives in moderate yields under