Table 4.
Rate constants with variation of R groups on the diketiminate and boranea
| Iron hydride reagent | BR3 reagent | Pseudo first-order rate constant kobs/s−1 |
|---|---|---|
| LMeFe(μ-H)2FeLMe (1a) | BEt3 | 3.09(2) × 10−3 |
| LMeFe(μ-H)2FeLMe (1a) | BPh3 | 8.91(5) × 10−3 |
| LtBuFe(μ-H)2FeLtBu (1b) | BEt3 | 4.8(2) × 10−3 |
[BR3] = 0.419 M, [LRFe(μ-H)2FeLR] = 26 mM, T = 40 °C.