US9890132: Process for the preparation of anti-inflammatory aroylbenzofuran compounds
Disclosed herein is an efficient for synthesis of benzofuran analogs 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 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.
Patent No:
US9890132
Application No:
14/914378
Filing Date:
25-02-2016
Issue Date:
13-02-2018
Applicant:
CSIR-National Chemical Laboratory (CSIR-NCL), Pune