Deoxydehydration
Deoxydehydration (DODH) is a chemical reaction for removing two adjacent hydroxyl groups in a vicinal diol to form an alkene.[1] In contrast to hydrodeoxygenation which uses hydrogen as a reductant, deoxydehydration is able to use a variety of other reductants such as alcohols and organic phosphines.[2] In research, the most common homogeneous catalysts for this reaction uses rhenium.
Recently, research has focused on the use of vanadium heterogeneous catalysts for deoxydehydration, such as the conversion of 2,3-butanediol to butene.[3] Although deoxydehydration over vanadium catalysts requires higher temperatures than rhenium catalysts, the reaction appear to proceed without the need for hydrogen or external reductants, which can reduce waste products.[3][4]
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References
- ^ Boucher-Jacobs, Camille; Nicholas, Kenneth M. (2014). "Deoxydehydration of polyols". Topics in Current Chemistry. 353: 163–184. doi:10.1007/128_2014_537. ISSN 0340-1022. PMID 24756633.
- ^ Liu, Shuo; Yi, Jing; Abu-Omar, Mahdi M. (2016). Reaction Pathways and Mechanisms in Thermocatalytic Biomass Conversion II. Green Chemistry and Sustainable Technology. Springer, Singapore. pp. 1–11. doi:10.1007/978-981-287-769-7_1. ISBN 9789812877680.
- ^ a b Kwok, Kelvin Mingyao; Choong, Catherine Kai Shin; Ong, Daniel Sze Wei; Ng, Joy Chun Qi; Gwie, Chuandayani Gunawan; Chen, Luwei; Borgna, Armando (2017-06-07). "Hydrogen-Free Gas-Phase Deoxydehydration of 2,3-Butanediol to Butene on Silica-Supported Vanadium Catalysts". ChemCatChem. 9 (13): 2443–2447. doi:10.1002/cctc.201700301. ISSN 1867-3880.
- ^ Petersen, Allan R.; Nielsen, Lasse B.; Dethlefsen, Johannes R.; Fristrup, Peter (2018-01-08). "Vanadium-Catalyzed Deoxydehydration of Glycerol Without an External Reductant". ChemCatChem. 10 (4): 769–778. doi:10.1002/cctc.201701049. ISSN 1867-3880.
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