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Photochemische Reaktionen. 28. Mitteilung [1]. UV.-Bestrahlung von 11-Oxo-Steroiden IV. 3,20-Di-äthylendioxy-11-oxo-C-nor-5α-pregnan

✍ Scribed by J. Iriarte; K. Schaffner; O. Jeger


Publisher
John Wiley and Sons
Year
1964
Tongue
German
Weight
670 KB
Volume
47
Category
Article
ISSN
0018-019X

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Photochemische Reaktionen. 76.Mitteilung
✍ Peter Gull; Yoshihisa Saito; Hansuli Wehrli; Oskar Jeger 📂 Article 📅 1974 🏛 John Wiley and Sons 🌐 German ⚖ 701 KB

## Abstract The UV.‐isomerisation of 11‐oxo‐14β,17α‐pregnane **9** to the 11,19‐cyclo‐derivative **11** is described. In addition the Pb(OAc)~4~‐fragmentation of photoproduct **11** was investigated. **11** yielded besides the expected 11‐oxo‐19‐hydroxy‐pregnane **18** the novel 9,11‐seco‐11,19‐cyc