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Zur Darstellung von 21-Estern des Pregnen-(5)-diol-(3β.21)-ons-(20) aus Pregnen-(5)-ol-(3 β)-on-(20)

✍ Scribed by Ruschig, Heinrich


Publisher
Wiley (John Wiley & Sons)
Year
1955
Tongue
English
Weight
430 KB
Volume
88
Category
Article
ISSN
0009-2940

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✍ B. M. Ranzi; F. Ronchetti; G. Russo 📂 Article 📅 1971 🏛 John Wiley and Sons 🌐 French ⚖ 412 KB 👁 1 views

The readily accessible pregna-5,16-dien-3/l-ol-20-one ( I ) was transformed into 3/l-acetoxy-pregna-5,I7-dien-20-isopropoxy-16one ( 9). This compound was labelled by base-catalyzed isotopic exchange and then reconverted into labelled pregna-5,16-dien-3/l-01-20-one (13). Hydrogenation of this last on