Zirconium Alkoxide Catalyzed Oppenauer Oxidation Using Chloral as the Hydride Acceptor
- 1 November 1996
- journal article
- research article
- Published by Georg Thieme Verlag KG in Synthesis
- Vol. 1996 (11) , 1341-1344
- https://doi.org/10.1055/s-1996-4381
Abstract
A new variation of the Oppenauer oxidation is presented with chloral as the hydride acceptor and Zr(O-t-BU)4 or, for highly reactive carbonyl products, the heterogeneous system SiO2/Zr(O-n-Pr)x, as the catalyst. The reaction proceeds under mild conditions (20°C) with a substoichiometric amount of Zr(O-t-Bu)4 (usually 20%). Primary and secondary allyl alcohols are converted in high yields to the corresponding carbonyl compounds.Keywords
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