Label | Product | Melting point | References | Yield* Ch.CN (%) | Yield* Cat (%) |
|---|
4a | 
| 132–135 ℃ | [61] | 90% | 88% |
4b | 
| 65–67 ℃ | [61] | 84% | 82% |
4c | 
| 94–96 ℃ | [61] | 83% | 80% |
4d | 
| 76–77 ℃ | [62] | 81% | 79% |
4e | 
| 109–111 ℃ | [61] | 80% | 80% |
4f | 
| 134–135 ℃ | [63] | 81% | 76% |
4g | 
| 107–108 ℃ | [64] | 81% | 78% |
4h | 
| 239 ℃ | [65] | 82% | 77% |
4i | 
| 87–89 ℃ | [61] | 83% | 79% |
- *Isolated yield Benzaldehyde (1 mmol), Cat:choline cyanide (1 mmol:0.13 g) or: Fe2O3-MgO@Ch.CN:100mg:(0.092mmol)
