Process for preparing 11-keto steroids

Details Process for preparing 11-keto steroids Process for preparing 11-keto steroids

Filed on

1980-12-10

Date issued

1982-02-16

Examiner

Roberts, Elbert L.

Patent Class

Chemistry of carbon compounds

SubClass

Miscellaneous organic carbon compounds

SubSubClass

C-metal

Other Related Categories

26039745, C07J 500

Type

Patent

Status

active

Patent number

043158668

Description

ABSTRACT:
A process for preparing an 11-keto steroid consists essentially of heating the corresponding 9.alpha.-halo-11.beta.-hydroxy steroid, to 180.degree.-350.degree. C. in an inert, aprotic, high-boiling solvent.

REFERENCES:
Chemical Abstracts (1970), vol. 73, Pars. 25730h.
Fieser and Fieser, "Steroids", 1961, 743.

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