Process for the preparation of triazolpyrimidines and their use

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专利权人:

DOW AGROSCIENCES LLC

发明人:

JOACHIM GEBHARDT

申请号：

BRPI0418135

公开号：

BRPI0418135B1

申请日:

2004.12.22

申请国别(地区):

BR

年份:

2014

代理人:

摘要：

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.

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