Catalytic hydroboration of CO2 by dialumenes (3 and 3Si).
Entry | Catalyst | Loading/mol% | Time/h | Temp/°C | Conversiona/% | Product distributionb/% | |||
---|---|---|---|---|---|---|---|---|---|
A | B | C | D | ||||||
1 | 3Si | 10 | 110 | 20 | 86 | 86 | 7 | 7 | 0 |
2 | 3Si | 5 | 4 | 60 | 68 | 94 | 2 | 4 | 0 |
3 | 3 | 5 | 58 | 20 | 81 | 39 | 27 | 34 | 0 |
4 | 3 | 5 | 24 | 20 | 66 | 65 | 15 | 17 | 3 |
5 | 3 | 1 | 24 | 60 | 62 | 49 | 7 | 41 | 3 |
Conversion of HBpin based on 11B NMR integrals.
Ratio of products based on 1H NMR integrals.