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.
VERFAHREN ZUR HERSTELLUNG VON 5-(1-PIPERAZINYL)-BENZOFURAN-2-CARBOXAMID DURCH ÜBERGANSMETALL-KATALYSIERTE AMINIERUNG
申请人:Merck Patent GmbH
公开号:EP1233961B9
公开(公告)日:2012-03-21
US6762300B2
申请人:——
公开号:US6762300B2
公开(公告)日:2004-07-13
Method for producing 5-(1-piperazinyl) -benzofuran-2-carboxamide by transition metal-catalyzed amination
申请人:——
公开号:US20030125558A1
公开(公告)日:2003-07-03
1. 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 R
2
-piperazine, in which R
2
is as defined in claim 1.