reaction of ketenedithioacetals 1a,b [1a: bis(methylthiomethylenemalononitrile; 1b: bis(methylthio)methylenecyanoacetamide] with hydrazines (hydrazine hydrate, phenylhydrazine, p-chlorophenylhydrazine, p-nitrophenylhydrazine), with formamide or carbon disulfide proceeded to give the corresponding 4-amino- or 4-hydroxy-3-methylthiopyrazolo[3,4-d]pyrimidines 6a-h in good yields. 3-Aminopyrazolo[3,4-d]pyrimidine
的5-氨基-3- methylthiopyrazole -4-腈或4-甲酰胺环化3A-J ,这是由乙烯酮二硫反应制备1A,B [1A:双(methylthiomethylenemalononitrile; 1B:二(甲硫基)methylenecyanoacetamide]与肼(水合肼,苯肼,p -chlorophenylhydrazine,p -nitrophenylhydrazine)与甲酰胺或二硫化碳进行,得到相应的4-氨基-或4-羟基-3- methylthiopyrazolo [3,4 d ]嘧啶6A-H在3-氨基吡唑并[3,4- d ]嘧啶衍生物6i-1 通过应用3,5-二氨基吡唑与甲酰胺的环化反应也获得了它们。
TOMINAGA, YOSHINORI;HONKAWA, YASUMASA;HARA, MAYUMI;HOSOMI, AKIRA, J. HETEROCYCL. CHEM., 27,(1990) N, C. 775-783
Reactions of [(4-cyano-3-methylsulfanyl-1-phenyl)pyrazol-5-yl]iminomethylenyl Ethyl Ether with Compounds Containing Amino Group and the Bioactivity of Products
作者:Wei-Qiang Chen、Gui-Yu Jin
DOI:10.1080/10426500211705
日期:2002.5.1
The study on reaction of (1-phenyl-3-methylthio-4-cyanopyrazol-5-yl)iminomethylene ethylether with compounds containing amino group was discussed in order to understand its reactivity. Some structures of compounds were verified by x-ray crystallographic study. The results of the bioassay showed that some of these compounds showed good fungicidal activities.
对(1-苯基-3-甲硫基-4-氰基吡唑-5-基)亚氨基亚甲基乙醚与含氨基化合物的反应进行了研究,以了解其反应性。一些化合物的结构通过 X 射线晶体学研究得到验证。生物测定的结果表明,这些化合物中的一些表现出良好的杀真菌活性。