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A Green Method for the Synthesis of Cyclopenta[b]chromen‐1(9H)‐one Derivatives in Ionic Liquids
Authors:Jie Sheng  Mei‐Mei Zhang  Hong Jiang  Xiang‐Shan Wang
Affiliation:1. School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Xuzhou Normal University, Xuzhou Jiangsu 221116, P. R. China;2. The Key Laboratory of Biotechnology on Medical Plant of Jiangsu Province, Xuzhou Normal University, Xuzhou Jiangsu 221116, P. R. China
Abstract:A series of cyclopenta[b]chromen‐1(9H)‐one derivatives is prepared in high yields by a one‐pot reaction of substituted salicylaldehydes and cyclopentane‐1,3‐dione in ionic liquids of [BMIm]Br, the procedure is very mild and environmentally benign.
Keywords:Chromene  Salicylaldehyde  Ionic liquids  Synthesis
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