2. FADH Reactions Using the Monometallic Ru Complexes 1–7 .
| entry | cat | Et3N/FA (%) | yield (%) | time (min) | TOF20 | TOF50 | TOF20/2 |
|---|---|---|---|---|---|---|---|
| 1 | 1 | 25 | --- | --- | --- | ||
| 2 | 1 | 50 | 7 | 1.2 | --- | --- | |
| 3 | 1 | 75 | 21 | 2.0 | 6428 | ||
| 4 | 1 | 100 | --- | --- | --- | ||
| 5 | 2 | 75 | 29 | 3.3 | 5565 | ||
| 6 | 3 | 75 | 7 | 3.6 | --- | ||
| 7 | 4 | 75 | 43 | 13 | 4285 | ||
| 8 | 5 | 75 | 64 | 9 | 5741 | ||
| 9 | 6 | 50 | 71 | 80 | 560 | 634 | 280 |
| 10 | 6 | 75 | 93 | 53 | 6036 | 2683 | 3018 |
| 11 | 6 | 100 | 86 | 96 | 4285 | 580 | 2142 |
| 12 | 7 | 50 | 71 | 80 | 886 | 671 | 443 |
| 13 | 7 | 75 | 93 | 74 | 4479 | 1363 | 2239 |
| 14 | 7 | 100 | 93 | 80 | 8130 | 2586 | 4065 |
a
Reactions carried out using a molar ratio of FA/C = 1000 and different amounts of Et3N (in mol % relative to the substrate) at 90 °C.
b
TOF20 (mol of H2/mol of cat./time(h)) calculated at 20% of conversion.
c
TOF50 calculated at 50% of yield.
d
TOF20 calculated for each Ru center dividing TOF20/2.