Oxidations with potassium permanganate — metal sulphates and nitrates. β-Selective epoxidation of Δ5-unsaturated steroids
Autor: | Jorge A. R. Salvador, A. S. Campos Neves, M. L. Sa E Melo |
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Rok vydání: | 1996 |
Předmět: | |
Zdroj: | Tetrahedron Letters. 37:687-690 |
ISSN: | 0040-4039 |
DOI: | 10.1016/0040-4039(95)02243-0 |
Popis: | The β-epoxidation of 3 β -acetoxy-Δ 5 -unsaturated steroids has been achieved with mmerous potassium permanganate-metal sulphates and nitrates with a high degree of stereoselectivity. 5β,6β-Epoxides are formed in a one step reaction in good yields and using very low cost reagents. The best results were achieved with KMnO 4 /Fe 2 (SO 4 ) 3 .nH 2 O. |
Databáze: | OpenAIRE |
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