| 发明名称 |
Process for preparing cyclopentenone derivatives |
| 摘要 |
A process for preparing cyclopentenone derivatives represented by the formula: <IMAGE> wherein R1 is methyl or ethyl, and R2 is hydrogen, methyl or acetyl, characterized in that a 1,4-diketone derivative represented by the formula: R1COCH2CH2COCH2OR2 wherein R1 and R2 are as defined above is cyclized in the presence of a basic catalyst.
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| 申请公布号 |
US4384144(A) |
申请公布日期 |
1983.05.17 |
| 申请号 |
US19810296367 |
申请日期 |
1981.08.26 |
| 申请人 |
OTSUKA KAGAKU YAKUHIN KABUSHIKI KAISHA |
发明人 |
SHONO, TATSUYA;MATSUMURA, YOSHIHIRO |
| 分类号 |
C07C69/03;A23L1/226;C07C45/00;C07C45/59;C07C45/66;C07C49/707;C07C49/753;C07C67/00;C07C69/145;C07D307/20;(IPC1-7):C07C45/59;C07C45/61 |
主分类号 |
C07C69/03 |
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