Efficient and Green Microwave-Assisted Multicomponent Biginelli Reaction for the Synthesis of Dihydropyrimidinones Catalyzed by Heteropolyanion-Based Ionic Liquids Under Solvent-Free Conditions
作者:Renzhong Fu、Yang Yang、Wenchen Lai、Yongfeng Ma、Zhikai Chen、Jian Zhou、Wen Chai、Quan Wang、Rongxin Yuan
DOI:10.1080/00397911.2014.976346
日期:2015.2.16
Abstract An efficient and green route for the synthesis of dihydropyrimidinones via microwave-assisted Biginelli reaction catalyzed by 3 mol% of heteropolyanion-based ionic liquids under solvent-free conditions has been reported. The practical reaction was found to be compatible with different structurally diverse substrates. Good to excellent yields, short reaction times, and operational simplicity
摘要 报道了一种在无溶剂条件下,由 3 mol% 杂多阴离子基离子液体催化的微波辅助 Biginelli 反应合成二氢嘧啶酮的高效绿色路线。发现实际反应与不同结构不同的底物相容。从良好到出色的产量、较短的反应时间和操作简单性是该协议的主要亮点。此外,基于杂多阴离子的离子液体很容易在 Biginelli 反应中重复使用。图形概要