Table 4. Continuous Flow Synthesis of Tricycle 6 From Pyridinone Acid 4 via Aldehyde 5 in Acetonitrile.
| reactor 2 residence time (min) | temp (°C) | selectivity (%) |
|---|---|---|
| 1 | 140 | - (stalling) |
| 3 | 140 | 64 |
| 5 | 140 | 71 |
| 7 | 140 | 71 |
| 9 | 140 | 73 |
| reactor 2 residence time (min) | temp (°C) | selectivity (%) |
|---|---|---|
| 1 | 140 | - (stalling) |
| 3 | 140 | 64 |
| 5 | 140 | 71 |
| 7 | 140 | 71 |
| 9 | 140 | 73 |