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Nitrile Oxide Approach to the Synthesis of Δ23-22-Oxo Steroids

✍ Scribed by V. A. Khripach; V. N. Zhabinskii; N. D. Pavlovskii

Book ID
110324888
Publisher
SP MAIK Nauka/Interperiodica
Year
2001
Tongue
English
Weight
95 KB
Volume
37
Category
Article
ISSN
1070-4280

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A new method for the preparation of a 1,4-diene system in the steroid side chain, providing the possibility of stereocontrol at C-3 has been described. Its usefulness has been examined for Á 22,25 -24-alkyl steroid synthesis. The proposed approach is based on the Ireland±Claisen rearrangement of Á 2