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Chromium trioxide-3, 5-dimethylpyrazole complex as a reagent for oxidation of alcohols to carbonyl compounds

✍ Scribed by E.J. Corey; G.W.J. Fleet

Publisher: Elsevier Science
Year: 1973
Tongue: French
Weight: 162 KB
Volume: 14
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)87260-9

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✦ Synopsis

A wide range of alcohols can be oxidized efficiently and conveniently by a complex of chromium trioxide and 3,5_dimethylpyrazole.

Addition of one equivalent of 3,5_dimethylpyrazole to a suspension o chromium trioxide in methylene chloride at room temperature forms a dark red solution; almost all the chromium trioxide dissolves within ten minutes. This complex is readily soluble in dichloromethane but sparingly soluble in ether or pentane.

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