PROCEDE DE PREPARATION DE TRIAZOLOPYRIMIDINES

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专利权人:

DOW AGROSCIENCES LLC

发明人:

GEBHARDT, JOACHIM

申请号：

CA2550874

公开号：

CA2550874C

申请日:

2004.12.22

申请国别(地区):

CA

年份:

2012

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 orits derivatives with alkyloxycarbonyl isothiocyanate or aryloxycarbonylisothiocyanate with B) hydroxyl ammonium salt and a base wherein the reactionis carried out in a polar aprotic organic solvent in the temperature range offrom 40 to 150 ~C.

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