The invention relates to a method for preparing 3-keto-benzofurane derivatives of the general formula: Formula (I), where R is an alkyl or aryl group, R1 is hydrogen or an alkyl or aryl group, and R2 is a substituted alkyl or phenyl group. Said preparation method involves coupling a derivative of Formula III, where X is chlorine, bromine, or iodine or a sulfonate grouping: Formula (III) with a sulfonamide derivative of the formula R—SO2—NH2 in the presence of a basic agent and a catalytic system formed of a complex between a palladium compound and a ligand.
本发明涉及一种制备3-酮基
苯并呋喃衍
生物的方法,其通式为:式(I),其中R为烷基或芳基,R1为氢或烷基或芳基,R2为取代烷基或苯基。所述制备方法涉及将式(III)的衍
生物与式R-SO2-NH2的磺酰胺衍
生物在碱性剂和
钯化合物与
配体形成的催化体系的存在下偶联,其中X为
氯、
溴、
碘或
磺酸基团,式(III)如下:式(III)。