Synthesis of 1,4-dihydropyridine esters using low-melting sugar mixtures as green solvents
作者:J. Ashwin Kumar、Gomathi Shridhar、Savita Ladage、Lakshmy Ravishankar
DOI:10.1080/00397911.2016.1242750
日期:2016.12.16
sugar mixtures (LMMs) were synthesized and used for preparation of 1,4-dihydropyridines with aldehydes, 1,3-dicarbonyl compounds, and a nitrogen source as starting materials. Good yields, low reaction times, recyclability of LMMs, and catalyst-free methodology are some of the highlights of this new protocol. GRAPHICAL ABSTRACT
摘要 合成了几种低熔点糖混合物 (LMM),并将其用于以醛、1,3-二羰基化合物和氮源为原料制备 1,4-二氢吡啶。良好的产量、低反应时间、LMM 的可回收性和无催化剂方法是该新协议的一些亮点。图形概要