A facile synthesis of 3-phenyl-4-(2-thienyl/2-furyl)- and 3,4-di(2-thienyl)coumarins by phase transfer catalysis method

摘要

Synthesis and characterization of 3-phenyl-4-(2-thienyl)coumarins, 4-(2-furyl)-3-phenylcoumarins and 3,4-di(2-trienyl)coumarins have been reported by phase transfer catalysis method in 75% yields. this method involves condensation of appropriate 2-thienyl or 2-furyl-2-hydroxyphenylmethanones with phenylacetyl chloride or 2-(2-thienyl)ethanoyl chloride using TABHSO_4 as PTC catalyst.