Synthesis of 2,5-Disubstituted Furans from Sc(OTf)<sub>3</sub> Catalyzed Reaction of Aryl Oxiranediesters with γ-Hydroxyenones
作者:Keshab Mondal、Subhas Chandra Pan
DOI:10.1021/acs.joc.7b00133
日期:2017.4.21
A convenient synthesis of 2,5-disubstituted furan was developed by employing donor–acceptor oxiranes in a new reaction with γ-hydroxyenones. Sc(OTf)3 was found to be the best catalyst, and 2,5-disubstituted furans are obtained in moderate to good yields under mild reaction conditions. The scope of the reaction is quite decent, allowing for the synthesis of disubstituted furans having aryl and heteroaromatic
通过在与γ-羟基烯酮的新反应中使用供体-受体环氧乙烷开发了2,5-二取代呋喃的便捷合成方法。发现Sc(OTf)3是最好的催化剂,在温和的反应条件下,以中等到良好的产率获得了2,5-二取代的呋喃。该反应的范围相当合适,可以合成具有芳基和杂芳族基团的二取代呋喃。