Table 1. Magnesium-catalysed hydroboration and reductive C O cleavage of organic isocyanates.
| |||||
| Entry | Ar/R | Catalyst (mol%) | Time (h) | Temp (°C) | NMR conv. a (%) |
| 1 | i-Pr | 10 | 1.5 | 60 | 76 |
| 2 | Ad | 10 | 4.5 | 60 | 75 |
| 3 | Et | 10 | 21 | 60 | 70 |
| 4 | n-Pr | 10 | 21 | 60 | 75 |
| 5 | t-Bu | 10 | 3.5 | 60 | 81 |
| 6 | Cy | 10 | 4.5 | 60 | 90 |
| 7 | Ph | 10 | 24 | 25 | 86 |
| 8 | Mes | 10 | 24 | 60 | 90 |
| 9 | Dipp | 10 | 24 | 60 | 50 |
aTo N-methyl amine product.