摘要 : An efficient synthesis of 2H-indazolo[2,l-b]phthalazine-l,6,11(13H)-trione derivatives from the four-component condensation of dimedone, arylaldehyde, hydrazine monohy-drate, and phthalic anhydride using reusable ionic liquids, 2-... 展开 An efficient synthesis of 2H-indazolo[2,l-b]phthalazine-l,6,11(13H)-trione derivatives from the four-component condensation of dimedone, arylaldehyde, hydrazine monohy-drate, and phthalic anhydride using reusable ionic liquids, 2-pyrrolidonium hydrogensul-fate, (4-sulfobutyl)tris(4-sulfophenyl)phosphonium hydrogensulfate and triphenyl(propyl-3-sulphonyl)phosphonium toluenesulfonate as acidic catalysts have been investigated. 收起