One-Pot Synthesis of Pyrano[2,3-b]quinolines from Enaminones under Solvent-Free Conditions
作者:Dewen Dong、Dexuan Xiang、Xiaoqing Xin、Xu Liu、Santosh Kumar
DOI:10.1055/s-0030-1261198
日期:2011.9
A facile and efficient one-pot synthesis of pyrano[2,3-b]quinolines has been developed via the Combes-type reaction of readily available enaminones, 2-arylamino-3-acetyl-5,6-dihydro-4H-pyrans, mediated by trifluoromethanesulfonic acid under solvent-free conditions.
通过易于获得的烯胺酮、2-芳基氨基-3-乙酰基-5,6-二氢-4H-吡喃、2-芳基氨基-3-乙酰基-5,6-二氢-4H-吡喃、在无溶剂条件下由三氟甲磺酸介导。