Synthesis of (Z)-3-aryloxy-acrylonitriles, (E)-3-aryloxy-acrylonitriles and 3-cyanobenzofurans through the sequential reactions of phenols with propiolonitriles
A copper‐mediated synthesis of 2,3‐disubstituted benzofurans with the assistance of an 8‐aminoquinolyl auxiliary is described from readily available benzamides and benzoylacetonitriles. In this reaction, the C−C bond is successfully constructed viaC−H activation, and C−O bond is subsequently formed at the original position of the amide group in a one‐pot manner. The amide directinggroup is detached
Copper-Catalyzed Preparation of 2-Aryl-3-cyanobenzofurans with Bright Blue Photoluminescence
作者:Lianpeng Zhang、Zhixing Peng、Qiaodong Wen、Xihui Li、Ping Lu、Yanguang Wang
DOI:10.1021/acs.orglett.5b03704
日期:2016.2.19
Copper-catalyzed cascade synthesis of 2-aryl-3-cyanobefizaurans from o-hydroxybenzaldehydes and arylacetonitriles in the presence of copper acetate and sodium methoxide is reported. The synthesized 2-aryl-3-cyanobenzofurans emit bright blue under IN light with a quantum yield up to 88.9%.