论文信息 - A Green Approach to the Synthesis of 2,3-Dihydropyrimidin-2(1H)-ones by Uronium Hydrogensulfate under Solvent-free Conditions

A Green Approach to the Synthesis of 2,3-Dihydropyrimidin-2(1H)-ones by Uronium Hydrogensulfate under Solvent-free Conditions

3,4-Dihydropyrimidin-2(1H)-ones and -thiones are synthesized in high yields by a one-pot condensation of an aldehyde, a β-dicarbonyl compound with hydrogensulfate salt of urea or thiourea under solvent-free conditions.

M. Zolfigol | M. Dabiri | M. Baghbanzadeh | P. Salehi

[1] M. Zolfigol,et al. Chemoselective N-nitrosation of secondary amines under mild and heterogeneous conditions via in situ generation of NOCl† , 2000 .