Ammonium chloride-catalyzed one-pot synthesis of 3,4-dihydropyrimidin-2-(1H)-ones under solvent-free conditions
作者:Ahmad Shaabani、Ayoob Bazgir、Fatemeh Teimouri
DOI:10.1016/s0040-4039(02)02612-6
日期:2003.1
available reagent, and efficiently catalyzes one-pot, three component, Biginelli condensation reactions of aldehydes, 1,3-dicarbonyl compounds and urea or thiourea under solvent-free conditions to afford the corresponding 3,4-dihydropyrimidin-2-(1H)-ones in high yields at 100°C.
氯化铵是一种非常便宜且易于获得的试剂,可在无溶剂条件下有效催化醛,1,3-二羰基化合物与尿素或硫脲的一锅三组分Biginelli缩合反应,从而提供相应的3,4-二氢嘧啶-2-(1 H)-在100°C下高收率。