A Practical and Green Approach towards Synthesis of Dihydropyrimidinones without Any Solvent or Catalyst
作者:Brindaban C. Ranu、Alakananda Hajra、Suvendu S. Dey
DOI:10.1021/op0255478
日期:2002.11.1
A simple, efficient, green, and cost-effective procedure has been developed for the synthesis of dihydropyrimidinones by a solvent-free and catalyst-freeBiginelli's condensation of 1,3-dicarbonyl compound, aldehyde, and urea. This approach of direct reaction in neat without solvent and catalyst shows a new direction in green synthesis.
Cu-Mn Bimetallic Complex Immobilized on Magnetic NPs as an Efficient Catalyst for Domino One-Pot Preparation of Benzimidazole and Biginelli Reactions from Alcohols
作者:Mohammad Ali Nasseri、Zinat Rezazadeh、Milad Kazemnejadi、Ali Allahresani
DOI:10.1007/s10562-020-03371-0
日期:2021.4
An efficient magnetically recyclable bimetallic catalyst by anchoring copper and manganese complexes on the Fe3O4 NPs was prepared and named as Fe3O4@Cu-Mn. It was founded as a powerful catalyst for the domino one-pot oxidative benzimidazole and Biginelli reactions from benzyl alcohols as a green protocol in the presence of air, under solvent-free and mild conditions. Fe3O4@Cu-Mn NPs were well characterized
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
作者:Essa H. Hu、Daniel R. Sidler、Ulf-H. Dolling
DOI:10.1021/jo970846u
日期:1998.5.1
A microwave-assisted, copper-catalyzed three-component synthesis of dihydropyrimidinones under mild conditions
作者:Kalyan Kumar Pasunooti、Hua Chai、Chantel Nixon Jensen、Bala Kishan Gorityala、Siming Wang、Xue-Wei Liu
DOI:10.1016/j.tetlet.2010.10.150
日期:2011.1
The synthesis of dihydropyrimidinones via a clean multi-component Biginelli reaction under microwave irradiation is reported. The copper-catalyzed process proved to be simple, efficient, economical, and environmentally friendly. (C) 2010 Elsevier Ltd. All rights reserved.