Affiliation:
1. School of Chemistry and Chemical Engineering Yangzhou University Yangzhou P. R. China
2. Hangzhou Udragon Chemical Co., Ltd Hangzhou P. R. China
Abstract
AbstractA novel ZnCl2‐promoted three‐component reaction strategy for the synthesis of hexahydrochromeno[2,3‐b]quinoline derivatives via the Aldol condensation/Michael addition/cycloaddition/dehydration cascade reaction of 2‐amino‐4H‐chromen‐4‐ones, aromatic aldehydes, and cyclohexane‐1,3‐dione was investigated. This procedure is environmentally friendly, highly efficient, and has a broad scope. The structures of the products obtained were determined based on x‐ray diffraction studies.