1373335-01-3Relevant articles and documents
Metal-free tandem Friedel-Crafts/lactonization reaction to benzofuranones bearing a quaternary center at C3 position
Chen, Long,Zhou, Feng,Shi, Tao-Da,Zhou, Jian
experimental part, p. 4354 - 4362 (2012/06/18)
A metal-free tandem Friedel-Crafts/lactonization reaction to 3,3-diaryl or 3-alkyl-3-aryl benzofuranones catalyzed by HClO4 was reported. A variety of tertiary α-hydroxy acid esters could readily react with substituted phenols to afford the des