申请人:Bailly Fréderic
公开号:US20130165673A1
公开(公告)日:2013-06-27
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, R
1
is hydrogen or an alkyl or aryl group, and R
2
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—SO
2
—NH
2
in the presence of a basic agent and a catalytic system formed of a complex between a palladium compound and a ligand.
该发明涉及一种制备3-酮基苯并呋喃衍生物的方法,其通式为:Formula (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。所述制备方法涉及在碱性试剂和由钯化合物与配体形成的催化系统的存在下,将通式为III的衍生物(其中X为氯、溴、碘或磺酸基团):Formula (III) 与通式为R-SO2-NH2的磺酰胺衍生物进行偶联。