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Details for article 83 of 178 found articles
| Title: |
Kinetics and Mechanism for the Epimhrization of Aldopentonic Acid Potassium Salts in Aqueous Alkali |
| Author: |
Kalman, M. Sokolowski, J. Szafranek, J. Lonnberg, H. |
| Appeared in: |
Journal of carbohydrate chemistry |
| Paging: | Volume 6 (1987) nr. 4 pages 587-592 |
| Year: |
1987-12-01 |
| Contents: |
The epimerization of the potassium salts of L-arabinonic, D-ribonic, D-lyxonic and D-xylonic acids in aqueous alkali was followed kinetically by gas Chromatographie analyses of the silylated samples. Mass spectrometric measurements indicated that the reaction proceeded by a complete proton exchange at C2, the kinetic deuterium isotope effect, k-H/k-D being 4.2. Most probably the proton transfer from the C2 atom to hydroxiae ion is the rate-limiting stage of the epimerization. |
| Publisher: |
Taylor & Francis |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 83 of 178 found articles
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