Decarbonylation and dehydrogenation of carbohydrates

Details Decarbonylation and dehydrogenation of carbohydrates Decarbonylation and dehydrogenation of carbohydrates

1988-10-05

1991-05-07

Stoll, Robert L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549503, 568853, 568863, C07D30702

Patent

active

H00009180

ABSTRACT:
Carbohydrates, especially aldose or ketose sugars, including those whose carbonyl group is masked by hemi-acetal or hemi-ketal formation, are decarbonylated by heating the feed carbohydrate together with a transition metal complex in a suitable solvent. Also, primary alcohols, including sugar alditols are simultaneously dehydrogenated and decarbonylated by heating a mixture of rhodium and ruthenium complexes and the alcohol and optionally a hydrogen acceptor in an acceptable solvent. Such defarbonylation and/or dehydrogenation of sugars provides a convenient procedure for the synthesis of certain carbohydrates and may provide a means for the conversion of biomass into useful products.

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