Green Method for the Synthesis of Polysubstituted Chromene Derivatives in Ionic Liquids
作者:Mei-Mei Zhang、Jian-Rong Wu、Jie Zhou、Xiang-Shan Wang
DOI:10.1080/00397911.2010.528128
日期:2012.2.15
reaction of aromatic aldehyde, malononitrile, and 2-(2,3-dihydrochromen-4-ylidene)malononitrile was performed in ionic liquids of [BMIm]BF4 and [BMIm]Br, resulting in a green synthesis of 6H-benzo[c]chromene-8,8,10(7H)-tricarbonitrile and 6H-benzo[c]chromene-8,10-dicarbonitrile derivatives in good yields. This procedure has the advantages of good yields, one pot, and environmental friendliness. GRAPHICAL
摘要 本文在 [BMIm]BF4 和 [BMIm]Br 离子液体中进行了相同的芳香醛、丙二腈和 2-(2,3-dihydrochromen-4-ylidene)丙二腈反应,绿色合成6H-苯并[c]色烯-8,8,10(7H)-三甲腈和6H-苯并[c]色烯-8,10-二甲腈衍生物的产率良好。该工艺具有产量好、一锅、环保等优点。图形概要