Steroid synthesis process using mixed anhydride

Details Steroid synthesis process using mixed anhydride Steroid synthesis process using mixed anhydride

1978-06-19

1979-06-12

Love, Ethel G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603409AS, 2603973, C07C 6138

Patent

active

041580125

ABSTRACT:
The tricyclic intermediate ##STR1## is prepared in a three step sequence from the bicyclic intermediate ##STR2## The key step of this process involves the addition of a Grignard reagent to a mixed anhydride. Tricyclic compound of formula (I) may be readily converted by known methods to valuable steroids.

REFERENCES:
patent: 3686215 (1972-08-01), Henrick et al.
patent: 3763229 (1973-10-01), Noguchi et al.

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