Copper-Catalyzed Preparation of 2-Aryl-3-cyanobenzofurans with Bright Blue Photoluminescence
摘要:
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%.
Synthesis of (Z)-3-aryloxy-acrylonitriles, (E)-3-aryloxy-acrylonitriles and 3-cyanobenzofurans through the sequential reactions of phenols with propiolonitriles
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%.
Synthesis of (Z)-3-aryloxy-acrylonitriles, (E)-3-aryloxy-acrylonitriles and 3-cyanobenzofurans through the sequential reactions of phenols with propiolonitriles
作者:Wei Zhou、Yicheng Zhang、Pinhua Li、Lei Wang
DOI:10.1039/c2ob25969a
日期:——
A Na2CO3-promoted addition of phenols to propiolonitriles generated (Z)-3-aryloxy-acrylonitriles in nearly quantitative yields with exclusively Z-isomers, and a DABCO-promoted addition reaction of phenols with propiolonitriles afforded mainly (E)-3-aryloxy-acrylonitriles with high yields. The obtained (E)-3-aryloxy-acrylonitriles underwent intramolecular cyclization to give 3-cyanobenzofurans in good yields through palladium-catalyzed direct C–H bond functionalization.