Title of article :
A novel sulfonic acid functionalized ionic liquid catalyzed multicomponent synthesis of 10,11-dihydrochromeno[4,3-b]chromene-6,8(7H,9H)-dione derivatives in water
Author/Authors :
Chen، نويسنده , , Zhiwei and Zhu، نويسنده , , Qiang and Su، نويسنده , , Weike، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2011
Abstract :
Three-component reactions of 4-hydroxycoumarin, aldehydes, and cyclic 1,3-dicarbonyl compounds were prompted by novel sulfonic acid functionalized ionic liquids 1,3-dimethyl-2-oxo-1,3-bis(4-sulfobutyl)imidazolidine-1,3-diium hydrogen sulfate ([DMDBSI]·2HSO4) in water at reflux temperature to provide a novel series of 10,11-dihydrochromeno[4,3-b]chromene-6,8(7H,9H)-dione derivatives for the first time in high yields.
Keywords :
10 , 3-b]chromene-6 , 9H)-dione derivatives , multicomponent reaction , 1 , Sulfonic acid functionalized ionic liquids , 3-Dimethyl-2-oxo-1 , 3-bis(4-sulfobutyl)imidazolidine-1 , 8(7H
Journal title :
Tetrahedron Letters
Journal title :
Tetrahedron Letters
