The aluminium-catalyzed hydride shift from the a-carbon of an alcohol component to the carbonyl carbon of a second component, which proceeds via a six-membered transition state, is referred to as the Meerwein-Ponndorf-Verley Reduction (MPV) or the Oppenauer Oxidation, depending on which component is the desired product. If the alcohol is the desired product, the reaction is viewed as the Meerwein-Ponndorf-Verley Reduction.
Isopropanol is useful as a hydride donor because the resulting acetone may be continuously removed from the reaction mixture by distillation.
Grignard Reagents will sometimes yield the result of an MPV reduction if the carbonyl carbon is too hindered for nucleophilic addition.
Transfer Hydrogenation of Carbonyl Derivatives Catalyzed by an Inexpensive Phosphine-Free Manganese Precatalyst
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Lithium Bromide as a Flexible, Mild, and Recyclable Reagent for Solvent-Free Cannizzaro, Tishchenko, and Meerwein-Ponndorf-Verley Reactions
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Reduction of Carbonyl Compounds by Lanthanide Metal/2-Propanol: In-situ Generation of Samarium Isopropyloxide for Stereoselective Meerwein-Ponndorf-Verley Reduction
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