[EN] PROCESS FOR THE PREPARATION OF TRIAZOLOPYRIMIDINES<br/>[FR] PROCEDE DE PREPARATION DE TRIAZOLOPYRIMIDINES
申请人:BASF AG
公开号:WO2005063753A1
公开(公告)日:2005-07-14
Process for the preparation of unsubstituted or substituted 2-amino-[1,2,4]triazolopyrimidines which comprises combining A) 2-amino-pyrimidine or its derivatives with alkyloxycarbonyl isothiocyanate or aryloxycarbonyl isothiocyanate with B) hydroxyl ammonium salt and a base wherein the reaction is carried out in a polar aprotic organic solvent in the temperature range of from 40 to 150 °C.
HIVAYAMA T.; KAMADA M.; MIMURA M.; TSURUMI H., CHEM. AND PHARM. BULL. <CPBT-AL>, 1976, 24, NO 3, 507-514
作者:HIVAYAMA T.、 KAMADA M.、 MIMURA M.、 TSURUMI H.
DOI:——
日期:——
PROCESS FOR THE PREPARATION OF TRIAZOLOPYRIMIDINES
申请人:Dow AgroSciences LLC
公开号:EP1699794B1
公开(公告)日:2008-01-02
Process for the Preparation of Triazolopyrimidines
申请人:Gebhardt Joachim
公开号:US20070238873A1
公开(公告)日:2007-10-11
Process for the preparation of unsubstituted or substituted 2-amino-[1,2,4]triazolopyrimidines which comprises combining A) 2-amino-pyrimidine or its derivatives with alkyloxycarbonyl isothiocyanate or aryloxycarbonyl isothiocyanate with B) hydroxyl ammonium salt and a base wherein the reaction is carried out in a polar aprotic organic solvent in the temperature range of from 40 to 150° C.