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Highly β-selective epoxidation of the Δ5- and Δ4-unsaturated steroids catalyzed by the silica-supported polyhalogenated ruthenium porphyrin

✍ Scribed by Yuan-Cong Zhao; Yong-Ze Xiang; Lin Pu; Meng Yang; Xiao-Qi Yu

Book ID: 108055124
Publisher: Elsevier Science
Year: 2006
Tongue: English
Weight: 335 KB
Volume: 301
Category: Article
ISSN: 0926-860X
DOI: 10.1016/j.apcata.2005.11.025

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A general catalytic and environmentally friendly method for beta-epoxidation of delta5-unsaturated steroids has been developed, which uses ketones as the catalysts and Oxone as the terminal oxidant. A whole range of delta5-unsaturated steroids, which bear different functional groups such as hydroxyl