The present invention is to provide a 3,3-dialkoxy-2-hydroxyiminopropionitrile represented by the formula (1):
1
wherein R
1
and R
2
may be the same or different from each other, and each represent an alkyl group having 1 to 8 carbon atoms,
a process for preparing the same, and a process for preparing a 5-amino-4-nitrosopyrazole compound represented by the formula (4):
2
wherein R
4
represents a hydrogen atom, an alkyl group which may have a substituent(s) or an aryl group which may have a substituent(s),
or an acid salt thereof using the same.
本发明提供一种由式(1)表示的3,3-二烷氧基-2-羟基
亚胺丙腈:其中R1和R2可以相同也可以不同,分别表示具有1到8个碳原子的烷基;以及制备该化合物的方法和利用该化合物制备由式(4)表示的5-
氨基-4-亚硝基
吡唑化合物:其中R4表示氢原子、可以具有取代基的烷基或可以具有取代基的芳基,或其酸盐。