An ionic liquid-catalyzed synthesis of 2-amino-4,5-dihydro-4-arylpyrano[3,2-b]indole-3-carbonitrile derivatives through a novel three-component condensation of 3-hydroxyindole, aromatic aldehydes and malononitrile in the presence of silica supported ionic liquid of [pmim]HSO4SiO2(silica supported 1-methyl-3-(triethoxysilylpropyl)imidazolium hydrogensulfate) as an efficient catalyst is described.
本文介绍了一种
离子液体催化的合成方法,通过新型的三组分缩合反应,将3-羟基
吲哚、芳香醛和
丙二腈在
硅胶支持的
离子液体[pmim]HSO
4SiO2(
硅胶支持
1-甲基-3-(三乙
氧基
硅烷基)
咪唑氢硫酸盐)的高效催化下,合成了2-
氨基-4,5-二
氢-4-芳基
吡喃[3,2-b]吲哌-3-
碳腈衍
生物。