New hydrazine derivative |
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申请号 | JP15561290 | 申请日 | 1990-06-15 | 公开(公告)号 | JPH03115255A | 公开(公告)日 | 1991-05-16 |
申请人 | Ciba Geigy Ag; | 发明人 | HANSUYURUKU BUETSUTAA; PEETAA BAUMAISUTAA; PAURU RADEIMERUSUKII; PIEERU MARUTEIN; | ||||
摘要 | NEW MATERIAL: A hydrazine derivative of formula I or II (where R=H, CHO, COR', COOR', CONH 2 ; R' = a 1-4C alkyl, benzyl, phenyl) or a salt of a compd. of formula II (where R=H) and an org. or inorg. acid. EXAMPLE: 1-[2-(2,4-Dichlorophenyl)pentylidene]-2-acetylhydrazine. USE: A synthesis intermediate of 1-[2-(2,4-dichlorophenyl) pentyl]-1H-1,2,4-triazole useful as an bactericide. PROCESS: A compd. of formula I is obtd. by reacting 2-(2,4-dichlorophenyl)- valeronitrile with a hydrazine of formula III under the existence of H, an acid and a catalyst for hydrogenation. A compd. of formula II is obtd. by catalytically hydrogenating a compd. of formula I. COPYRIGHT: (C)1991,JPO |
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