发明名称 |
Verfahren zur Herstellung von 1-Methyl-3-keto-ï·1·,·4·-steroiden |
摘要 |
Described is a method for the preparation of 1-methyl-3-keto- DELTA <1,4>-steroids of general formula (I) in which St represents the residue of a steroid molecule, the method being characterized in that a 3-keto- DELTA <1,4>-steroid of general formula (II) in which St is as defined above is reacted in an inert solvent, in the presence of a nickel salt which is soluble in the solvent, with an organometallic compound of formula (III), (IV) or (V) in which X is a methyl group, an alkoxy group with a maximum of 6 carbon atoms or a phenoxy group optionally substituted by halogen atoms, alkoxy groups with a maximum of 6 carbon atoms and/or alkyl groups with a maximum of 6 carbon atoms and Y1, Y2 and Y3 as well as Z1 and Z2, which may be the same or different, are the same as X.
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申请公布号 |
DE4227053(A1) |
申请公布日期 |
1994.02.17 |
申请号 |
DE19924227053 |
申请日期 |
1992.08.13 |
申请人 |
SCHERING AG BERLIN UND BERGKAMEN, 13353 BERLIN, DE |
发明人 |
WESTERMANN, JUERGEN, DR., 1000 BERLIN, DE;NICKISCH, KLAUS,DR., 1000 BERLIN, DE;PRELLE, ANNETTE, DR., 1000 BERLIN, DE |
分类号 |
C07J75/00;C07J1/00;C07J21/00;(IPC1-7):C07J1/00 |
主分类号 |
C07J75/00 |
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