Abstract
| Original language | English |
|---|---|
| Article number | 105894 |
| Journal | Catalysis Communications |
| Volume | 135 |
| Number of pages | 5 |
| ISSN | 1566-7367 |
| DOIs | |
| Publication status | Published - 2020 |
Keywords
- Brønsted acid
- Glucose
- In situ NMR
- Kinetics
- Lewis acid
- Reaction order
Cite this
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Kinetic variations in Acid-Catalyzed Monosaccharide Conversion. / Meier, Sebastian.
In: Catalysis Communications, Vol. 135, 105894, 2020.Research output: Contribution to journal › Journal article › Research › peer-review
TY - JOUR
T1 - Kinetic variations in Acid-Catalyzed Monosaccharide Conversion
AU - Meier, Sebastian
PY - 2020
Y1 - 2020
N2 - Kinetic models for the conversion of abundant carbohydrates have often remained controversial. Direct spectroscopic observations show that conversion of ketoses by Lewis acidic salts follows an exponential time course, while the corresponding conversion of aldoses follows a second order kinetic in various solvents and using various metal chloride catalysts. Brønsted acid catalyzed conversion of glucose and fructose displays two kinetic regimes due to the competition between the kinetically favoured formation of androhydrosugars and the thermodynamically favored formation of furanics. Thus, slow kinetic phases occur towards the end of glucose conversion by Lewis and Brønsted acidic catalysis, albeit for different reasons.
AB - Kinetic models for the conversion of abundant carbohydrates have often remained controversial. Direct spectroscopic observations show that conversion of ketoses by Lewis acidic salts follows an exponential time course, while the corresponding conversion of aldoses follows a second order kinetic in various solvents and using various metal chloride catalysts. Brønsted acid catalyzed conversion of glucose and fructose displays two kinetic regimes due to the competition between the kinetically favoured formation of androhydrosugars and the thermodynamically favored formation of furanics. Thus, slow kinetic phases occur towards the end of glucose conversion by Lewis and Brønsted acidic catalysis, albeit for different reasons.
KW - Brønsted acid
KW - Glucose
KW - In situ NMR
KW - Kinetics
KW - Lewis acid
KW - Reaction order
U2 - 10.1016/j.catcom.2019.105894
DO - 10.1016/j.catcom.2019.105894
M3 - Journal article
VL - 135
JO - Catalysis Communications
JF - Catalysis Communications
SN - 1566-7367
M1 - 105894
ER -