Copper nanoparticles catalyzed economical synthesis of 3-substituted isocoumarins from 2-chlorobenzoic acids/amides and 1,3-diketones
作者:Xiaowen Wang、Chaolong Wu、Youwen Sun、Xiaoquan Yao
DOI:10.1016/j.tetlet.2017.07.001
日期:2017.8
Copper nanoparticles were utilized as a highly efficient catalyst for a facile and economical synthesis of 3-substituted isocoumarins with 2-chlorobenzoic acids and 1,3-diketones as starting materials. The copper nanoparticles catalyst showed highly catalytic activity for the 2-chloro-substituted substrates to afford 3-substituted isocoumarins in good to excellent yields. Furthermore, good catalytic
铜纳米颗粒被用作一种高效催化剂,用于以2-氯苯甲酸和1,3-二酮为起始原料轻松,经济地合成3-取代的香豆素。铜纳米颗粒催化剂对2-氯取代的底物表现出高催化活性,以良好至优异的产率提供3-取代的异香豆素。此外,当使用2-氯苯甲酰胺代替苯甲酸作为底物时,也观察到了良好的催化活性。