发明名称 |
2-Alkyl-2-(3-oxoalkyl)-1,3-cyclopentadiones |
摘要 |
Optically active organic compounds are prepared starting from optically inactive reactants by means of an optically active agent which influences the course of the reaction. In particular optically active compounds having a "meso" type carbon atom undergo an intramolecular ring closure in the presence of an optically active agent to yield an optically active product having one additional ring. The present process is particularly useful in the preparation of optically active bicyclic diketones which are important intermediates in the total synthesis of steroids.
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申请公布号 |
US3975442(A) |
申请公布日期 |
1976.08.17 |
申请号 |
US19740467355 |
申请日期 |
1974.05.06 |
申请人 |
HOFFMANN-LA ROCHE INC. |
发明人 |
HAJOS, ZOLTAN GEORGE;PARRISH, DAVID RICHARD |
分类号 |
(IPC1-7):C07C49/27 |
主分类号 |
(IPC1-7):C07C49/27 |
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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