[EN] A PROCESS FOR THE PALLADIUM-CATALYZED COUPLING OF TERMINAL ALKYNES WITH ARYL TOSYLATES<br/>[FR] PROCÉDÉ POUR LE COUPLAGE CATALYSÉ PAR LE PALLADIUM D'ALCYNES TERMINALES AVEC DES TOSYLATES D'ARYLE
申请人:SANOFI AVENTIS
公开号:WO2009003589A1
公开(公告)日:2009-01-08
The present invention relates to a process for the regioselective synthesis of compounds of the formula (I), wherein R1; R2; R3; R4; R5; J and W have the meanings indicated in the claims. The present invention provides an efficient and general palladium-catalyzed coupling process for aryl tosylates with terminal alkynes to a wide variety of substituted, multifunctional aryl-1-alkynes of the formula (I) useful for the production of intermediates in the preparation for pharmaceuticals, diagnostic agents, liquid crystals, polymers, herbicides, fungicidals, nematicidals, parasiticides, insecticides, acaricides and arthropodicides.