Russian Chemical Bulletin p. 593 - 595 (1999)
Update date:2022-08-25
Topics:
Vasiljeva
Demin
Kochev
Lapitskaya
Pivnitsky
A new method for the aromatization of ring A in androsta-1,4-diene-3,17-dione, available from sterols by means of the microbiological degradation of the side chain, was developed. The method consists of the reduction of androsta-1,4-diene-3,17-dione to the corresponding dienediol followed by double C,O-deprotonation of ring A, accompanied by expulsion of the 19-methyl group and formation of estradiol in a high yield.
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