Efficient syntheses of novel indeno[1,2-b]chromenone derivatives via hetero-Diels-Alder reactions of 2-(arylmethylene)-1H-indene-1,3(2H)-diones with enaminones
Keywords: کرومنون; [4+2] cycloaddition; Hetero Diels-Alder reaction; Enaminones; Ionic liquid; Chromenone;