Efficient and green microwave-assisted one-pot synthesis of azaindolizines in PEG-400 and water
作者:Devendra S. Wagare、Mazhar Farooqui、Tushar D. Keche、Ayesha Durrani
DOI:10.1080/00397911.2016.1223314
日期:2016.11.1
ABSTRACT A facile, convenient, environmentally benign, and one-pot synthesis of imidazo[1,2-a]pyridines from 2-aminopyridines and in-situ generated phenacyl bromides under microwave irradiation in polyethylene glycol (PEG-400) and water (1:2) has been developed. The protocol provides a better alternative to the existing method as it involves utilization of in-situ-generated α-bromoacetophenones, avoids
摘要:在聚乙二醇 (PEG-400) 和水 (1) 中微波辐射下,从 2-氨基吡啶和原位生成的苯甲酰溴轻松、方便、环境友好地一锅合成咪唑并[1,2-a]吡啶:2) 已开发。该协议为现有方法提供了更好的替代方案,因为它涉及利用原位生成的 α-溴苯乙酮,避免使用催泪型 α-卤代酮以及挥发性有毒有机溶剂,并缩短反应时间以获得优异的产量。图形概要