2-hydroxyimino-3-oxopropionitrile 、 2-肼基乙醇 在
正己烷 作用下,
以
甲醇 为溶剂,
反应 1.0h,
以to give 1.55 g (isolation yield: 99%) of 3-(2-hydroxyethyl)hydrazono-2-hydroxyiminopropionitrile as dark brownish solid的产率得到3-(2-hydroxyethyl)hydrazono-2-hydroxyiminopropionitrile
参考文献:
名称:
Process for producing 3-unsubstituted 5-amino-4-nitrosopyrazole compound, and 2-hydroxyimino-3-oxopropionitrile, 3-hydrazono-2-hydroxyiminopropionitrile compound, and processes for producing these
Process for producing 3-unsubstituted 5-amino-4-nitrosopyrazole compound, and 2-hydroxyimino-3-oxopropionitrile, 3-hydrazono-2-hydroxyiminopropionitrile compound, and processes for producing these
申请人:Fukuda Yasuhisa
公开号:US20050096472A1
公开(公告)日:2005-05-05
The present invention is to provide a process for preparing a 3-unsubstituted-5-amino-4-nitrosopyrazole compound represented by the formula (1):
wherein R
1
represents a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group each of which may have a substituent(s),
which comprises cyclizing a 3-hydrazono-2-hydroxyiminopropionitrile compound represented by the formula (2):
wherein R
1
has the same meaning as defined above, synthetic intermediates thereof and a process for preparing these intermediates.