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Photolysis of Steroidal 20-Aryl-Substituted 11-Nitrites

✍ Scribed by Jaroslav Kalvoda; Jüren Grob; Mira Bjelakovíć; Ljubinka Lorenc; Mihailo Lj. Mihailovíć

Publisher
John Wiley and Sons
Year
1997
Tongue
German
Weight
474 KB
Volume
80
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

The two structurally similar 20‐phenyl‐ and 20‐(4‐methoxyphenyl)‐11‐(nitrosooxy)pregnan‐20‐ol derivatives 4 and 7 behave differently under photolytic conditions, the former nitrous acid ester affording, as a main product, the benzo‐fused hexacyclic compound 9, and the latter the 21‐nitro derivative 12. Mechanistic aspects of these transformations are discussed.

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