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US 9,174,911 B2Granted
Production of glutaric acid and derivatives from carbohydrate-containing materials
AssigneeRennovia Inc.
InventorsThomas R. Boussie, Eric L. Dias, Zachary M. Fresco, Vincent J. Murphy
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Abstract
The present invention generally relates to processes for the chemocatalytic conversion of a pentose source to a glutaric acid product. The present invention includes processes for the conversion of pentose to a glutaric acid product via pentaric acid or derivatives thereof. The present invention also includes processes comprising the catalytic oxidation of pentose to pentaric acid and catalytic hydrodeoxygenation of pentaric acid or derivatives thereof to a glutaric acid product.
Claims28
A process for preparing a C5-backbone substrate, the process comprising:
- reacting a pentose with oxygen in the presence of a heterogeneous oxidation catalyst comprising a metal selected from the group consisting of Pd, Pt, and combinations thereof to convert at least a portion of the pentose to the C5-backbone substrate, wherein the pH of the reaction mixture is no greater than about 7 and the C5-backbone substrate is a compound of formula I or lactone thereof:
- wherein X is independently hydroxyl, oxo, halo, acyloxy or hydrogen provided that at least one X is not hydrogen and R1 is independently a salt-forming ion, hydrogen, hydrocarbyl, or substituted hydrocarbyl.
Dependencies are inferred from the claim text.