✦ LIBER ✦
11β-Hydroxy-progesteron-18-säure-lacton und die WALDEN'sche Umkehrung am Kohlenstoffatom 11 bei 18-oxygenierten Steroiden. Über Steroide, 178. Mitteilung
✍ Scribed by K. Heusler; P. Wieland; A. Wettstein
- Publisher
- John Wiley and Sons
- Year
- 1961
- Tongue
- German
- Weight
- 512 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
The intramolecular nucleophilic displacement with WALDEN inversion of the llα‐tosyloxy group in 18,20‐lactones of the pregnane series is described. Depending upon the reaction conditions 18,11,β‐lactones or orthoester derivatives are obtained.