发明名称 Process for the preparation of 2,4,6-triamino-5-arylazo- pyrimidines
摘要 The process entails in a first step reacting malononitrile with an aryldiazonium salt to give the arylazomalononitrile and in a second step reacting the arylazomalononitrile with a guanidine in the presence of a solvent by heating.
申请公布号 CH649292(A5) 申请公布日期 1985.05.15
申请号 CH19820004474 申请日期 1982.07.22
申请人 LONZA AG, GAMPEL/WALLIS. GESCHAEFTSLEITUNG 发明人 O'MURCHU, COLM, DR.
分类号 C07D239/46;(IPC1-7):C07D239/46 主分类号 C07D239/46
代理机构 代理人
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