Process for the production of 17.alpha.-acetoxy-1.alpha.,2.alpha

Details Process for the production of 17.alpha.-acetoxy-1.alpha.,2.alpha Process for the production of 17.alpha.-acetoxy-1.alpha.,2.alpha

1984-09-07

1986-07-08

Roberts, Elbert L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07J 7100

Patent

active

045992002

ABSTRACT:
A multistep process for production of 17.alpha.-acetoxy-1,2-methylene-4,6-pregnadiene-3,20-dione involves ketalization of the 20-keto group of 17.alpha.-hydroxy-1,4,6-pregnatriene-3,20-dione, then methylenation in the 1,2-position with trimethylsulfoxonium iodide, hydrolysis and simultaneous acetylation of the 17.alpha.-hydroxy group.

REFERENCES:
patent: 3069417 (1962-12-01), Weiss et al.
patent: 3079382 (1963-02-01), Camerino et al.

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