A series of pyrimidinone derivatives were efficiently synthesized using PEG-SANM nanocomposite as the solid acid nanocatalyst undermild and solvent-free conditions. The generality of the process was successfully demonstrated by variation of the starting materials. Also, large-scale synthesis of products occurred readily in the presence of this nanocatalyst. This new method eliminated the use of organic
Novel Biginelli-like three-component cyclocondensation reaction: efficient synthesis of 5-unsubstituted 3,4-dihydropyrimidin-2(1H)-ones
作者:Zong-Ting Wang、Li-Wen Xu、Chun-Gu Xia、Han-Qing Wang
DOI:10.1016/j.tetlet.2004.08.107
日期:2004.10
Iron (III) catalyzed the three-component Biginelli-like cyclocondensation reaction efficiently in acetonitrile to afford the corresponding 5-unsubstituted 3,4-dihydropyrimidin-2-(1H)-ones in high yields. The first Biginelli-like reactions of urea, aldehydes and ketones were furnished important new 3,4-dihydropyrimidin-2-(1H)-ones derivatives suitable for further study.