Hydrogenation of d-fructose and d-fructose/ d-glucose mixtures

d-Fructose and d-fructose/ d-glucose mixtures have been hydrogenated in water at 60–80° and 20–75 atm. of hydrogen with Ni, Cu, Ru, Rh, Pd, Os, Ir, and Pt severally as catalysts. The selectivity for the formation of d-mannitol from d-fructose as well as the selectivity for the hydrogenation of d-fru...

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Bibliographic Details
Published in:Carbohydrate research 1985-05, Vol.138 (2), p.225-236
Main Authors: Makkee, Michiel, Kieboom, Antonius P.G., van Bekkum, Herman
Format: Article
Language:English
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Summary:d-Fructose and d-fructose/ d-glucose mixtures have been hydrogenated in water at 60–80° and 20–75 atm. of hydrogen with Ni, Cu, Ru, Rh, Pd, Os, Ir, and Pt severally as catalysts. The selectivity for the formation of d-mannitol from d-fructose as well as the selectivity for the hydrogenation of d-fructose in the presence of d-glucose with Cu/silica as the catalyst are substantially higher than those for the other catalysts. With Cu/silica as the catalyst, the hydrogenation of d-fructose is first order with respect to the amount of catalyst and the hydrogen pressure, whereas a shift from first- to zero-order kinetics occurs on going from low (
ISSN:0008-6215
1873-426X
DOI:10.1016/0008-6215(85)85106-5