Disclosed herein an efficient process for synthesis of benzofuran analogues having anti-inflammatory activity which comprises, Ru-catalyzed branched and linear selective alkylation of aroylbenzofurans formula-I with alpha, beta unsaturated esters of formula-II via C-H activation in presence of base, additives and organic solvent at suitable temperature to give high yield of desired linear alkylated benzofuran compounds of formula-III or branched alkylated benzofuran compounds of formula-IV or mixture thereof.
本文披露了一种高效合成具有抗炎活性的
苯并呋喃类似物的过程,包括在碱、
添加剂和有机溶剂的存在下,通过Ru催化的分支和线性选择性芳基
苯并呋喃式-I与式-II的α,β不饱和
酯进行烷基化反应,通过C-H活化在适当温度下,以高产率得到所需的线性烷基化
苯并呋喃化合物式-III或分支烷基化
苯并呋喃化合物式-IV或二者的混合物。