Equilibrium and rate constants for the dissociation of 3-(hydroxybenzyl)triazolium adductsa.
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|---|---|---|---|---|---|---|---|---|---|
| Entry | Triazolium salt | Tetrahedral adduct | k d (×10−5 s−1) | k d fit (×10−5 s−1) | k a (×10−2 M−1 s−1) | k a fit (×10−2 M−1 s−1) | K diss (×10−5 M−1) | K fit (×10−5 M−1) | 1/Kdiss (×102 M−1) |
| 1 | 39 | 12 | 4.54 | 4.06 | 20.7 | 16.6 | 21.9 | 24.5 | 45.7 |
| 2 | 42 | 18 | 0.882 | 0.879 | 41.8 | 43.5 | 2.11 | 2.02 | 474 |
| 3 | 45 | 29 | 25.6 | 26.1 | 23.3 | 24.8 | 11.0 | 10.5 | 9.09 |
| 4 | 46 | 30 | 8.46 | 8.57 | 135 | 136 | 6.27 | 6.30 | 160 |
Conditions: tetrahedral adduct 20 mM, Et3N : Et3N·HCl (2 : 1) 90 mM in CD3OD at 25 °C.