1前言吡唑类化合物用途广泛,可用于医药、除草剂、杀虫剂、杀菌剂、染料以及光致变色等研究领域,极受国内外化学工作者的关注。3,5-二氨基-4-苯偶氮基吡唑是一种重要的有机中间体,是合成染发剂3,5-二氨基吡唑,双偶氮吡唑酮[1,5-a]嘧啶系列染料的关键中间体,也是设计、合成吡唑类含能材料的基础原材料。 1 Introduction Pyrazole compounds are widely used in medicine, herbicides, insecticides, fungicides, dyes and photochromic and other fields of research, highly domestic and foreign chemists attention. 3,5-diamino-4-phenylazopyrazole is an important organic intermediate and is a synthetic hair dye, 3,5-diaminopyrazole, disazopyrazolone [1,5-a] Pyrimidine series of key dye intermediates, but also design, synthesis of pyrazole-based energy-saving materials, the basic raw materials.