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Document Type and Number:
Japanese Patent JPS6212799
Kind Code:
B2
Abstract:
Disclosed is a process for the preparation of a 4,6-dien-3-one steroid by brominating an enolic ether of a 4-en-3-one steroid in a water-containing organic solvent which is substantially free from acetic acid and sodium acetate to give a 6-bromosteroid and then dehydrobrominating the 6-bromosteroid in a medium which contains dimethylformamide or N-methylpyrrolidone and 1 to 9% by volume of water.

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Inventors:
NITSUTA KAZUMASA
HARUYAMA TOSHIO
INOE SHINYA
Application Number:
JP13151179A
Publication Date:
March 20, 1987
Filing Date:
October 12, 1979
Export Citation:
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Assignee:
MITSUBISHI CHEM IND
International Classes:
C07J7/00; C07J21/00; C07J51/00; C07J75/00



 
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