Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 74, Issue 21, Pages 8488-8491Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jo9018478
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Funding
- Fundacao para a Cienica e Tecnologia [SFRZH/BD/18013/2004]
- Universidade de Coimbra
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The use of bismuth(III) triflate as catalyst for the direct conversion of corticosteroids into highly functionalized 17-ketosteroids by cleavage of the C17-dihydroxyacetone side chain is reported. This catalytic process is very chemoselective, since functionalities of the starting corticosteroids, such its Delta(4)-3-keto, Delta(1,4)-3-keto, 11 beta-hydroxyl, and 9 beta, 11 beta-epoxide, remained intact.
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