Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1975-09-24
1977-01-18
Thomas, Jr., James O.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260590C, C07C 4982
Patent
active
040039498
ABSTRACT:
A multi-step, stereospecific total synthesis of steroids is disclosed. The starting materials for this process are the relatively inexpensive and readily available m-alkoxy acetophenones. The process is suitable for the preparation of racemic or optically active, medicinally valuable steroids, particularly A-ring aromatic steroids. This process features an early optical resolution and a unique asymmetric induction which insures the correct stereochemistry of the final steroidal product.
REFERENCES:
patent: 3417105 (1968-12-01), Hughes et al.
patent: 3850911 (1974-11-01), Hughes et al.
Cohen Noal
Saucy Gabriel
Gould George M.
Hoffmann-La Roche Inc.
Reamer James H.
Thomas, Jr. James O.
Welt Samuel L.
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