发明名称 |
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 |
摘要 |
<p>The present invention is to provide a process for preparing a 3-unsubstituted-5-amino-4-nitrosopyrazole compound represented by the formula (1): <CHEM> 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): <CHEM> wherein R<1> has the same meaning as defined above, synthetic intermediates thereof and a process for preparing these intermediates.</p> |
申请公布号 |
EP1475369(A1) |
申请公布日期 |
2004.11.10 |
申请号 |
EP20030701857 |
申请日期 |
2003.01.24 |
申请人 |
UBE INDUSTRIES, LTD. |
发明人 |
FUKUDA, YASUHISA;SHIKITA, SHOJI;MURAKAMI, TADASHI;OKU, MASAYOSHI;OTA, HIROYUKI;SONE, MASANORI |
分类号 |
C07C255/66;C07C253/30;C07C255/64;C07D231/38;(IPC1-7):C07D231/38 |
主分类号 |
C07C255/66 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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