发明名称 |
PROCESS FOR PRODUCTION OF SUBSTITUTED CYCLOPENTANONE |
摘要 |
<p>A substituted cyclopentanone represented by the formula (2) can be produced by hydrogenating the double bond in a compound represented by the formula (1) in the presence of a transition metal catalyst by using a carboxylic acid or a specific concentration of a carboxylic acid ester as a solvent. This process can produce a substituted cyclopentanone which is useful as an jasmine-flavored fragrance, an intermediate in the production of the fragrance or the like, in a simple and inexpensive manner at a high cis-form ratio; (1) wherein R<SUP>1 </SUP>and R<SUP>2</SUP> represent a substituent having 1 to 8 carbon atoms; and (2) wherein R<SUP>3</SUP> and R<SUP>4</SUP> represent a substituent having 1 to 8 carbon atoms, may be the same as R<SUP>1</SUP> and R<SUP>2</SUP>, and may be the same as each other.</p> |
申请公布号 |
WO2007004442(A1) |
申请公布日期 |
2007.01.11 |
申请号 |
WO2006JP312605 |
申请日期 |
2006.06.23 |
申请人 |
ASAHI KASEI CHEMICALS CORPORATION;SHIMIZU, KATSUYA;MATSUSHITA, FUMIO |
发明人 |
SHIMIZU, KATSUYA;MATSUSHITA, FUMIO |
分类号 |
C07C67/303;C07B53/00;C07C45/41;C07C45/51;C07C49/395;C07C49/647;C07C67/31;C07C67/475;C07C69/716;C07C69/738;C07D303/04;C07D307/33 |
主分类号 |
C07C67/303 |
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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