Document Type and Number:
Japanese Patent JPH02360
Kind Code:
B2
Abstract:
3-enol ethers of 11 beta -hydroxy- DELTA 4-pregnene-3-ones are prepared by reacting triethylorthoacetate with an 11 beta -hydroxy- DELTA 4-pregnene-3-one in a solvent which is at least 40% by weight or more ethanol and 60% by weight or less of a compatible oxygenated hydrocarbon liquid in the presence of an acid catalyst. This reaction forms a basis of a process for forming 6-halo-derivatives, particularly 6-chloro- DELTA 1,4,6-pregnatrien -11 beta ,17 alpha ,21-triol-3,20-dione.
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Inventors:
PASUKARU JII GAREGURA
Application Number:
JP7441486A
Publication Date:
January 08, 1990
Filing Date:
April 02, 1986
Export Citation:
Assignee:
SYNTEX INC
International Classes:
C12P33/16; C07J5/00; C07J7/00; C07J71/00
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