Patent ID: 9334254
Filing Date: 2016-05-10
CPC Classification: C07D

Claim Text:
1. A process for preparing 5-sulfonamidobenzofuran derivatives of general formula: in which R represents an alkyl or aryl group and R in which R in which R in which R has the same meaning as previously, in the presence of a basic agent and of a catalytic system formed from a complex between a palladium compound and a ligand wherein the palladium compound is selected from the group consisting of bis(dibenzylideneacetone)palladium(0) and tris(dibenzylideneacetone)dipalladium (0), and wherein the ligand is 2-(di-tert-butylphosphino)-2′,4′,6′-triisopropyl-1,1′-biphenyl.