reaction of 3-chloro-5,6-diphenylpyridazine-4-carbonitrile with potassium thiocyanate gave the corresponding isothiocyanate derivative. This was reacted with aromatic amines in ethanol to afford pyrimido[4,5- c ]pyridazine derivatives. The reaction of the latter compounds with hydrazine hydrate led to the formation of 6-hydrazino derivatives. One hydrazino compound was reacted with a variety of reagents
3-
氯-5,6-二苯基
哒嗪-4-腈与
硫氰酸钾的反应得到相应的异
硫氰酸酯衍
生物。使它与芳族胺在
乙醇中反应,得到
嘧啶并[4,5- c ]
哒嗪衍
生物。后者化合物与
水合
肼的反应导致6-
肼基衍
生物的形成。一种
肼化合物用多种试剂以产生其它新pyrimidopyridazines以及许多反应 小号 -三唑并衍
生物。