9,10-Seco-steroid preparation

Details 9,10-Seco-steroid preparation 9,10-Seco-steroid preparation

1976-01-23

1977-08-30

Myers, Jane S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603403, 2603405AS, 2603406, 2603409AS, 2603457R, 2603458R, 2603459S, 2603473, 2603474, 2603477, 2603478, 260465R, 260465D, 260465E, 260465F, 260469, 260471A, 260473F, 260476C, 260479R, 260488CD, 260562R, 260562P, 260562A, 260571, 260578, C07C 4976, C07C 4982, C07C 4984

Patent

active

040454908

ABSTRACT:
A process for the preparation of 9,10-seco-steroids of the formula ##STR1## wherein R.sup.1 and R.sup.2 independently are hydrogen, amino, OR.sup.5, OCOR.sup.6 or NHCOR.sup.5 wherein R.sup.5 is hydrogen or lower alkyl and R.sup.6 is lower alkyl or phenyl; R.sup.3 is lower alkyl; R.sup.4 is oxo, ##STR2## wherein R.sup.13 is lower alkyl, lower alkoxy - lower alkylene, tetrahydropyranyl or tetrahydrofuryl, R.sup.14 is lower alkyl or aryl and R.sup.15 and R.sup.16 are lower alkyl or taken together form lower alkylene or arylene, and n is 1 or 2 is disclosed. The 9,10-seco-steroids of this invention are useful intermediates for the preparation of steroids.

REFERENCES:
patent: 3929876 (1975-12-01), Hajos
patent: 4008253 (1977-02-01), Souer et al.
Hunig et al., as cited in C.A. 50, 14599(f) (1956).

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