Condition-controlled selective synthesis of coumarins and flavones from 3-(2-hydroxyphenyl)propiolates and iodine
作者:Shuying Cai、Yang Shen、Ping Lu、Yanguang Wang
DOI:10.1016/j.tetlet.2011.05.150
日期:2011.8
2H-Chromen-2-ones (coumarins) and 4H-chromen-4-ones (flavones) were selectively prepared via the reaction of 3-(2-hydroxyphenyl)propiolates with iodine in toluene and N,N-dimethylformide, respectively. (C) 2011 Elsevier Ltd. All rights reserved.