Synthesis of alkyl-substituted pyrroles by three-component coupling of carbonyl compound, amine and nitro-alkane/alkene on a solid surface of silica gel/alumina under microwave irradiation
作者:Brindaban C Ranu、Alakananda Hajra
DOI:10.1016/s0040-4020(01)00400-8
日期:2001.5
Efficient synthesis of highly substituted alkylpyrroles and fused pyrroles has been achieved by a three-component coupling of (a) α,β-unsaturated aldehyde/ketone, amine and nitroalkane and (b) α,β-unsaturated nitroalkene, aldehyde/ketone and amine on the surface of silica gel and alumina without any solvent under microwave irradiation.
通过(a)α,β-不饱和醛/酮,胺和硝基烷与(b)α,β-不饱和硝基链烯,醛/酮和胺的三组分偶联,实现了高度取代的烷基吡咯和稠合吡咯的有效合成。微波辐射下,在没有任何溶剂的情况下在硅胶和氧化铝的表面上沉积。