| Autor: |
Lezina, V. P., Shirokova, L. V., Stolyarova, L. G., Smirnov, L. D. |
| Zdroj: |
Russian Chemical Bulletin; October 1981, Vol. 30 Issue: 10 p1818-1821, 4p |
| Abstrakt: |
1.Based on kinetic regularities of the H/D exchange of hydrogen in 5-hydroxynicotinic, 5-hydroxypicolinic, and 3-hydroxyisonicotinic acids at 160° in the region pD > 5.0 it has been found that the reaction follows an electrophilic mechanism and that the a position of the ring, vicinal to the OH group, is the most reactive.2.The proton exchange rate constants have been determined which characterize the contribution of the anionic form of theß-hydroxypyridinecarboxylic acids to the H/D exchange reaction. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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