An efficient synthesis of 3,4-dihydropyrimidin-2(1H)-one and 5,6-diphenylpyrimidine derivatives under solvent-free and base conditions
作者:Jing Xu、Ganlu Hao、Xu Gao、Hui Xu、Liangce Rong
DOI:10.1007/s11164-016-2842-y
日期:2017.7
An efficient and convenient Biginelli-like reaction one-pot synthesis of a series of 4-aryl-5,6-diphenyl-3,4-dihydropyrimidin-2(1H)-one and 4-aryl-5,6-diphenylpyrimidine derivativesundersolvent-freeconditions from the reaction of aromatic aldehydes, 1,2-diphenylethanone, urea, guanidine carbonate or acetamidine hydrochloride has been reported. This methodology has the advantages of short reaction
An Efficient Synthesis of New 3,4-Dihydropyrimidin- 2(1H)-ones Incorporating a Phenyl Moiety at C-5 and C-6 Catalyzed by TMSCl and Co(OAc)<sub>2</sub>.4H<sub>2</sub>O
作者:Hassan Kefayati、Maryam Fakhriyannejad、Ali A. Mohammadi
DOI:10.1080/10426500802341499
日期:2009.7.13
New 3,4-dihydropyrimidin-2-ones having a phenyl moiety at C-5 and C-6 have been prepared by a microwave-assisted Biginelli–like reaction by a three-component, one-pot condensation of an aromatic aldehyde, deoxybenzoin and urea, or thiourea using TMSCl and Co(OAc) 2 .4H 2 O as an efficient Lewis acid catalyst.