Oxidation of natural targets by dioxiranes. 2. Direct hydroxylation at the side chain C-25 of cholestane derivatives and of vitamin D3 Windaus-Grundmann ketone

The direct, high-yield oxyfunctionalization of the side-chain C-25 of 5-alpha-cholestan-3-one, 3-beta-acetoxy-5-alpha-cholestane, and 5-alpha,6-beta-Br2-3-beta-acetoxycholestane as well as of the vitamin D3-derived Windaus-Grundmann ketone has been achieved under mild conditions employing either dim...

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Published inJournal of organic chemistry Vol. 57; no. 19; pp. 5052 - 5054
Main Authors Bovicelli, Paolo, Lupattelli, Paolo, Mincione, Enrico, Prencipe, Teresa, Curci, Ruggero
Format Journal Article
LanguageEnglish
Published WASHINGTON American Chemical Society 01.09.1992
Amer Chemical Soc
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Abstract The direct, high-yield oxyfunctionalization of the side-chain C-25 of 5-alpha-cholestan-3-one, 3-beta-acetoxy-5-alpha-cholestane, and 5-alpha,6-beta-Br2-3-beta-acetoxycholestane as well as of the vitamin D3-derived Windaus-Grundmann ketone has been achieved under mild conditions employing either dimethyldioxirane or its trifluoromethyl analogue.
AbstractList The direct, high-yield oxyfunctionalization of the side-chain C-25 of 5-alpha-cholestan-3-one, 3-beta-acetoxy-5-alpha-cholestane, and 5-alpha,6-beta-Br2-3-beta-acetoxycholestane as well as of the vitamin D3-derived Windaus-Grundmann ketone has been achieved under mild conditions employing either dimethyldioxirane or its trifluoromethyl analogue.
Author Curci, Ruggero
Bovicelli, Paolo
Prencipe, Teresa
Mincione, Enrico
Lupattelli, Paolo
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Issue 19
Keywords METHYL(TRIFLUOROMETHYL)DIOXIRANE
ACID
ACETONE
POTASSIUM CAROATE
INTERMEDIATE
1-ALPHA,25-DIHYDROXYERGOCALCIFEROL
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Snippet The direct, high-yield oxyfunctionalization of the side-chain C-25 of 5-alpha-cholestan-3-one, 3-beta-acetoxy-5-alpha-cholestane, and...
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SubjectTerms Chemistry
Chemistry, Organic
Physical Sciences
Science & Technology
Title Oxidation of natural targets by dioxiranes. 2. Direct hydroxylation at the side chain C-25 of cholestane derivatives and of vitamin D3 Windaus-Grundmann ketone
URI http://dx.doi.org/10.1021/jo00045a004
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