[EN] AN IMPROVED PROCESS FOR THE PREPARATION OF N-([1,2,4]TRIAZOLOPYRIMIDIN-2-YL)ARYL SULFONAMIDES<br/>[FR] PROCEDE AMELIORE DE PREPARATION DE N-([1,2,4]TRIAZOLOPYRIMIDINE-2-YL)ARYLSULFONAMIDES
申请人:DOW AGROSCIENCES LLC
公开号:WO2005097793A1
公开(公告)日:2005-10-20
The N-arylsulfilimine-catalyzed coupling of aromatic sulfonyl chlorides with N-([1,2,4]triazolopyrimidin-2-yl)amines to form N-([1,2,4]triazolopyrimïdin-2-yl)aryl sulfonamides is improved by the selection of 3-picoline or 3,5lutidirne as the base.