Method for isolation of 3-hydroxy steroids and 3-keto steroids

Details Method for isolation of 3-hydroxy steroids and 3-keto steroids Method for isolation of 3-hydroxy steroids and 3-keto steroids

1976-06-25

1977-11-08

Roberts, Elbert L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

26039725, 2603973, 2603974, C07J 7100

Patent

active

040575411

ABSTRACT:
An improved process for isolating 3-hydroxy steroids and 3-keto steroids from mixtures thereof with lipids by dissolving the mixtures in an organic solvent, mixing the dissolved mixture with a metal salt to form insoluble adducts of the steroids, separating the insoluble adducts and splitting the adducts to regenerate the free steroids, which comprises using methyl isobutyl ketone and/or methyl n-amyl ketone as the solvent and calcium bromide as the metal salt.

REFERENCES:
patent: 3450541 (1969-06-01), Schwartz et al.
patent: 3983147 (1976-09-01), Senda et al.

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