PROCESS FOR PREPARING 3-ENOL ETHERS OF 11'-HYDROXY-'4-PREGNENE-3-ONES DERIVATIVES THEREOF

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 presen...

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Bibliographic Details
Main Author GALLEGRA, PASQUALE G
Format Patent
LanguageEnglish
French
Published 27.11.1979
Subjects
BEER
BIOCHEMISTRY
CHEMISTRY
ENZYMOLOGY
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE
METALLURGY
MICROBIOLOGY
MUTATION OR GENETIC ENGINEERING
ORGANIC CHEMISTRY
SPIRITS
STEROIDS
VINEGAR
WINE
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Summary: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.
Bibliography:Application Number: CA19760244908