Ionic Liquid, [bmim]Br, as an Efficient Promoting Medium for Synthesis of 3-Acetoacetylcoumarin Derivatives Without the Use of Any Catalyst
作者:Da-Qing Shi、Yao Zhou、Shao-Feng Rong
DOI:10.1080/00397910902779306
日期:2009.9.8
A series of 3-acetoacetylcoumarin derivatives were synthesized via the reaction of substituted 2-hydroxybenzaldehydes and 4-hydroxy-6-methyl-2H-pyran-2-one in ionic liquid. This method has the advantages of good yields, milder reaction conditions, easier workup, no catalyst, and environmentally benign procedure.