3,3-DIALKOXY-2-HYDROXYIMINOPROPIONITRILES, PROCESS FOR PREPARATION THEREOF AND PROCESS OF PREPARING 5-AMINO -4-NITROSOPYRAZOLES OR SALTS THEREOF BY THE USE OF THE SAME
3,3-Dialkoxy-2-hydroxyiminopropionitriles, process for preparation thereof and process of preparing 5-amino-4-nitrosopyrazoles or salts thereof by the use of the same
申请人:UBE INDUSTRIES, LTD.
公开号:US20040116732A1
公开(公告)日:2004-06-17
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.
3,3-dialkoxy-2-hydroxyiminopropionitriles, process for preparation thereof and process of preparing 5-amino-4-nitrosopyrazoles or salts thereof by the use of the same
申请人:Ube Industries, Ltd.
公开号:US07227032B2
公开(公告)日:2007-06-05
The present invention is to provide a 3,3-dialkoxy-2-hydroxyiminopropionitrile represented by the formula (1):
wherein R1 and R2 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):
wherein R4 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.
3,3-DIALKOXY-2-HYDROXYIMINOPROPIONITRILES, PROCESS FOR PREPARATION THEREOF AND PROCESS OF PREPARING 5-AMINO -4-NITROSOPYRAZOLES OR SALTS THEREOF BY THE USE OF THE SAME