Kinetic analyses of intramolecular dehydration of hexitols in high-temperature water.

Aritomo Yamaguchi, Naoki Mimura, Masayuki Shirai, Osamu Sato

Carbohydrate research 2020 Jan

filter terms:

Intramolecular dehydration of the biomass-derived hexitols D-sorbitol, D-mannitol, and galactitol was investigated. These reactions were performed in high-temperature water at 523-573 K without added acid catalyst. The rate constants for the dehydration steps in the reaction networks were determined at various reaction temperatures, and the activation energies and pre-exponential factors were calculated from Arrhenius plots. The yield of each product was estimated as a function of reaction time and temperature using the calculated rate constants and activation energies. The maximum yield of each product from the dehydration reactions was predicted over a range of reaction time and temperature, allowing the selective production of these important platform chemicals. Copyright © 2019 Elsevier Ltd. All rights reserved.

Citation

Aritomo Yamaguchi, Naoki Mimura, Masayuki Shirai, Osamu Sato. Kinetic analyses of intramolecular dehydration of hexitols in high-temperature water. Carbohydrate research. 2020 Jan;487:107880