pTSA-catalyzed one-pot synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]xanthen-11-ones in ionic liquid and neat conditions
作者:Jitender M. Khurana、Devanshi Magoo
DOI:10.1016/j.tetlet.2009.06.029
日期:2009.8
3-dicarbonyl compounds catalyzed by p-toluenesulfonic acid has been accomplished for the synthesis of a series of 12-aryl-8,9,10,12-tetrahydrobenzo[a]xanthen-11-ones in ionicliquid([bmim]BF4) and in solvent-free media. High yields, ease of recovery, and reusable reaction medium (ionicliquid) with consistent activity makes this protocol efficient and environmentally benign.