发明名称 |
PROCESS FOR PRODUCING 5-FLUOROOXYINDOLE AND FOR PRODUCING INTERMEDIATE THEREFOR |
摘要 |
The present invention discloses a process for preparing 5-fluorooxindole represented by the formula (3): <CHEM> which comprises (A) a first step of cyclizing 2-(5-fluoro-2-nitrophenyl)malonic acid diester represented by the formula (1) : <CHEM> wherein R<1> and R<2> may be the same or different from each other and each represents a group which does not participate in the reaction, under reductive conditions to form 5-fluorooxindole-3-carboxylic acid ester represented by the formula (2): <CHEM> wherein R<1> has he same meaning as defined above, and (B) then, a second step of decarboxylating the 5-fluorooxindole-3-carboxylic acid ester, and a process for preparing its synthetic intermediates.
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申请公布号 |
EP1310486(A1) |
申请公布日期 |
2003.05.14 |
申请号 |
EP20010951925 |
申请日期 |
2001.07.19 |
申请人 |
UBE INDUSTRIES, LTD. |
发明人 |
HARADA, KATSUMASA;NISHINO, SHIGEYOSHI;HIROTSU, KENJI;YOKOYAMA, SHUJI;TAKAHASHI, TAKESHI;ODA, HIROYUKI |
分类号 |
C07C205/56;C07C255/41;C07D209/32;C07D209/34;(IPC1-7):C07D209/34;C07D209/42;C07C201/12;C07C205/26;C07C253/30 |
主分类号 |
C07C205/56 |
代理机构 |
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代理人 |
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地址 |
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