Table 4.
| |||
---|---|---|---|
Fast Catalysis | Slow Catalysis | ||
| |||
Catalyst | Rate (M s−1) | Catalyst | kobs (s−1) |
12 | 1.47(9) × 10−4 | 12 | 3.06(39) × 10−4 |
23 | 5.12(3) × 10−5 | 23 | 4.23(33) × 10−4 |
Data calculated from 11B NMR kinetic studies. 0.25 mol AB and 0.035 mol [Ruatom] are added to 0.6 mL diglyme/benzene-d6. Both reactions were run at 70 °C. Black circles and diamonds are kinetic profiles of reactions catalyzed by 23 and 12 respectively.