| 发明名称 |
Process for producing 4-trifluoromethylnicotinic acid |
| 摘要 |
A process for producing a 4-alkoxy-1,1,1-trifluoro-3-buten-2-one of the formula (III): CF3CO-CH=CH-OR<1> wherein R<1> is an alkyl group, which comprises reacting a halide of the formula (I): CF3COHal wherein Hal is a halogen atom, with a compound of the formula (II): CH2=CHOR<1> wherein R<1> is as defined above, in the presence of a base. |
| 申请公布号 |
EP0744400(A3) |
申请公布日期 |
1997.02.26 |
| 申请号 |
EP19960107614 |
申请日期 |
1996.05.13 |
| 申请人 |
ISHIHARA SANGYO KAISHA, LTD. |
发明人 |
KOYANAGI, TORU;YONEDA, TETSUO;KANAMORI, FUMIO;KANBAYASHI, SHIGEHISA;TANIMURA, TOYOSHI;HORIUCHI, NORIYUKI |
| 分类号 |
C07C45/45;C07C49/255;C07C221/00;C07C225/14;C07C229/22;C07C229/30;C07C251/08;C07D213/80 |
主分类号 |
C07C45/45 |
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