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Gewinnung von 1;4-Bisdehydro-3-oxo-steroiden. Über Steroide, 139. Mitteilung

✍ Scribed by Ch. Meystre; H. Frey; W. Voser; A. Wettstein


Publisher
John Wiley and Sons
Year
1956
Tongue
German
Weight
582 KB
Volume
39
Category
Article
ISSN
0018-019X

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✦ Synopsis


Abstract

A method is described which enables the production in only one chemical step of 1,4‐bisdehydro‐3‐oxo‐steroids inter alia from 3‐oxo‐ steroids saturated in ring A or from the α β‐mono‐unsaturated 3‐ketones. The dehydrogenating agent is selenium dioxide and the solvent a tertiary alcohol preferably containing some acid.


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Reaktionen von Steroid-Hypojoditen VII.
✍ Ch. Meystre; J. Kalvoda; G. Anner; A. Wettstein 📂 Article 📅 1963 🏛 John Wiley and Sons 🌐 German ⚖ 854 KB

## Abstract The homolytic cleavage of 11‐hypoiodites of 3‐oxo‐11α‐hydroxy‐steroids, generated from the corresponding hydroxy compounds by treatment with lead tetraacetate and iodine, has been investigated. The main reaction products are enol ethers containing the 3‐oxo‐1, 11α‐oxido‐Δ^1^‐grouping.

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