The invention relates to a process for preparing 5-sulfonamido-benzofuran derivatives of general formula: formula (I) in which R represents an alkyl or aryl group and R
1
and R
2
represent hydrogen or an alkyl or aryl group. According to the invention, the compounds of formula I are prepared by coupling a benzofuran derivative of general formula II, where X represents chlorine, bromine or iodine or a sulfonate group: formula (II) with a sulfonamide derivative of formula R—SO
2
—NH
2
, in the presence of a basic agent and of a catalyst system formed from a complex between a palladium compound and a ligand.
本发明涉及一种制备5-磺酰胺基
苯并呋喃衍
生物的方法,其通式为:式(I),其中R代表烷基或芳基,R1和R2代表氢或烷基或芳基。根据本发明,式I化合物是通过将通式II的
苯并呋喃衍
生物与式R-SO2-NH2的磺酰胺衍
生物在碱性剂和由
钯化合物和
配体形成的催化剂系统的存在下偶联制备的,其中X代表
氯、
溴或
碘或
磺酸盐基:式(II)。