Table 1.
Catalytic hydrolysis/alcoholysis of hydrosilanes.[a]
|
Entry |
Catalyst |
Silane |
Nucleophile |
TOF1/2 (h−1)[b] |
|---|---|---|---|---|
|
1 |
1 |
Et3SiH |
H2O |
20 385(2850) |
|
2 |
2 |
Et3SiH |
H2O |
0 |
|
3 |
[Ir(cod)Cl]2 |
Et3SiH |
H2O |
6276[c] |
|
4 |
1 |
Me2PhSiH |
H2O |
13 5678(20 509) |
|
5 |
1 |
MePh2SiH |
H2O |
44 776(297) |
|
6 |
1 |
Ph3SiH |
H2O |
950(29) |
|
7 |
1 |
Et3SiH |
MeOH |
13 107(671) |
|
8 |
1 |
Et3SiH |
EtOH |
11 952(289) |
|
9 |
1 |
Et3SiH |
iPrOH |
1301(47) |
[a] Reaction conditions: Silane (0.25 mmol), H2O or alcohol (2.5 mmol), 1 mol % of catalyst (based on iridium) in 1 mL of THF at 25 °C. [b] TOF1/2: turnover frequency calculated at a reaction time corresponding to 50 % of conversion, values averaged from 3 runs, errors in parenthesis. [c] Only one run.