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Triplettsensibilisierte Photoisomerisierung von Provitamin D3

✍ Scribed by Sabine Gliesing; Hans-Dieter Ilge; Manfred Reichenbächer; Dieter Faßler


Publisher
Wiley (John Wiley & Sons)
Year
2010
Weight
263 KB
Volume
26
Category
Article
ISSN
0044-2402

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Synthesis of 1α-hydroxy-provitamin D3
✍ Dalia Freeman; Aureliu Acher; Yehuda Mazur 📂 Article 📅 1975 🏛 Elsevier Science 🌐 French ⚖ 187 KB

We report on the conversion of cholesterol to A=\*7 -cholestadien-la,3g-diol diacetate (6) the photoprecursor of the physiologically active la-hydroxyvitamin D3,1 via A6-cholesten-la.Sg-diol @a). The latter compound was synthesized by modification of a recently published procedure of Li/liquid NH3 r

Ein neues Provitamin D: das Δ5,7-Norchol
✍ C. G. Alberti; B. Camerino; L. Mamoli 📂 Article 📅 1949 🏛 John Wiley and Sons 🌐 German ⚖ 385 KB

## Abstract Viene descritta la sintesi di una nuova provitamina D, il Δ^5,7^‐Norcolestadien‐3 β‐ol, a partire da una sterina con catena laterale rettilinea e satura. È stato pure isolato e caratterizzato un isomero della nuova provitamina, il Δ^4,6^‐Norcolestadien‐3 β‐olo presente nelle acque madri