Process for the preparation of 4,6-dien-3-one steroids

Details Process for the preparation of 4,6-dien-3-one steroids Process for the preparation of 4,6-dien-3-one steroids

1980-09-24

1982-01-19

Roberts, Elbert L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07J 700

Patent

active

043116469

ABSTRACT:
A 4,6-dien-3-one steroid is produced 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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