A NHC-Involved, Cascade, Metal-Free, and Three-Component Synthesis of 2,3-Diarylated Fully Substituted Furans under Solvent-Free Conditions
作者:Changsheng Yao、Chenxia Yu、Jun Lu、Tuanjie Li、Donglin Wang、Binbin Qin、Honghong Zhang
DOI:10.1055/s-0030-1261229
日期:2011.10
An efficient synthesis of 2,3-diarylated fully substituted furans was performed through the sequential reactions of Knoevenagel reaction, Stetter reaction catalyzed by NHC, and intramolecular cyclization under solvent-free conditions. The protocol has the advantages of easy workup, high yields, and an environmental benign procedure compared with the reported methods.
一种高效合成2,3-二芳基完全取代呋喃的方法,通过Knoevenagel反应、NHC催化的Stetter反应和无溶剂条件下的分子内环化反应的顺序反应进行。该方法相比已报道的方法具有易于操作、高产率和环保等优点。