Synthesis of 3,4-Dihydropyrimidinones via Phase Transfer Catalysis
作者:Younes Moussaoui、Ridha Ben Salem
DOI:10.1002/jhet.830
日期:2013.7
4‐Dihydropyrimidinone and derivatives were synthesized by the one‐pot, three‐component Biginelli condensation of an aldehyde, β‐dicarbonyl compound and urea. Synthesis was carried out in aqueous sodium hydroxide using Aliquat‐336 as a phasetransfer agent. Compared to the classical Biginelli reaction conditions, this new method cousistently has the advantage of excellent yields and short reaction time
Indium(III) Chloride-Catalyzed One-Pot Synthesis of Dihydropyrimidinones by a Three-Component Coupling of 1,3-Dicarbonyl Compounds, Aldehydes, and Urea: An Improved Procedure for the Biginelli Reaction
作者:Brindaban C. Ranu、Alakananda Hajra、Umasish Jana
DOI:10.1021/jo000711f
日期:2000.9.1
Unprecedented Catalytic Three Component One-Pot Condensation Reaction: An Efficient Synthesis of 5-Alkoxycarbonyl- 4-aryl-3,4-dihydropyrimidin-2(1H)-ones