Method for producing 5-(1-piperazinyl)-benzofuran-2-carboxamide by transition metal-catalyzed amination
申请人:Merck Patent GmbH
公开号:US06762300B2
公开(公告)日:2004-07-13
Process for the preparation of 5-(1-piperazinyl)benzofuran-2-carboxamide in which, as intermediate step, 5-bromosalicylaldehyde or one of its derivatives is reacted in a transition metal-catalysed amination with R2-piperazine, in which R2 is as defined in claim 1.