Highly Regioselective Synthesis of 2,3,5-Trisubstituted Furans via Phosphine-Catalyzed Ring-Opening Cycloisomerization Reactions of Cyclopropenyl Dicarboxylates
作者:Shengming Ma、Jie Chen、Shengjun Ni
DOI:10.1055/s-0030-1259904
日期:2011.4
Different 2,3,5-trisubstituted furans have been regioselectivelysynthesized through a ring-opening cycloisomerization of functionalizedcyclopropenyl carboxylates with moderate to excellent yields byusing tri(2-furanyl)phosphine as the catalyst.
使用三(2-呋喃基)膦作为催化剂,通过官能化环丙烯基羧酸酯的开环环异构化反应,区域选择性地合成了不同的 2,3,5-三取代呋喃,收率中等至极好。