Process for the preparation of 5-substituted-8-alkoxy[1,2,4]triazolo[1,5-c]pyrimidin-2-amines
申请人:Dow AgroSciences LLC
公开号:US08143395B2
公开(公告)日:2012-03-27
5-Substituted-8-alkoxy[1,2,4]triazolo[1,5-c]pyrimidin-2-amines are manufactured from 2-substituted-4-amino-5-methoxypyrimidines in a process that avoids hydrazine and cyanogen halide.
Process for the preparation of a 2-amino-5,8-alkoxy[1,2,4]triazolo[1,5-c]pyrimidine by reaction of a 5-halo-8-alkoxy[1,2,4]triazolo[1,5-c]pyrimidin-2-amine with an alkali metal alkoxide in an alcoholic solvent
申请人:Dow AgroSciences, LLC
公开号:EP2851367A1
公开(公告)日:2015-03-25
5-Substituted-8-alkoxy[1,2,4]triazolo[1,5-c]pyrimidin-2-amines are manufactured from 2-substituted-4-amino-5-methoxypyrimidines in a process that avoids hydrazine and cyanogen halide.
PROCESS FOR THE PREPARATION OF 5-SUBSTITUTED-8-ALKOXY[1,2,4]TRIAZOLO[1,5-C]PYRIMIDIN-2-AMINES
申请人:Dow AgroSciences LLC
公开号:EP2576558B1
公开(公告)日:2014-12-24
PROCESS FOR THE PREPARATION OF A 2-AMINO-5,8-ALKOXY[1,2,4]TRIAZOLO[1,5-C]PYRIMIDINE BY REACTION OF A 5-HALO-8-ALKOXY[1,2,4]TRIAZOLO[1,5-C]PYRIMIDIN-2-AMINE WITH AN ALKALI METAL ALKOXIDE IN AN ALCOHOLIC SOLVENT