1. Oxidative Transformations of Biosourced Alcohols Catalyzed by Earth-Abundant Transition Metals.
- Author
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Nguyen, Duc Hanh, Morin, Yohann, Zhang, Lei, Trivelli, Xavier, Capet, Frédéric, Paul, Sébastien, Desset, Simon, Dumeignil, Franck, and Gauvin, Régis M.
- Subjects
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ENERGY minerals , *OXIDATIVE dehydrogenation , *CARBOXYLIC acids , *NUCLEAR magnetic resonance spectroscopy , *TRANSITION metals - Abstract
The catalytic acceptorless dehydrogenative oxidation of biosourced alcohols into carboxylic acid salts was achieved using earth-abundant Fe and Mn complexes that feature aliphatic PNP pincer ligands in good to excellent yields. The Fe derivatives were characterized by using 57Fe NMR spectroscopy. Mn pincer catalysts are catalytically more efficient than their Fe counterparts thanks to their robustness under basic conditions. Attempts to generate aldehydes from alcohols were not successful using the Fe and Mn species, but a commercially available Ru analogue achieves this transformation selectively under very mild conditions in the presence of a large excess of acetone as a hydrogen acceptor. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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