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Summary of Observations to Support Formation of Catalytically Active Pd Nanoparticles from Pd(TFA)2/2-Me2Npy.
| Entry | Observation | Dehydrogenation Step
|
|
|---|---|---|---|
| Ketone to Enone | Enone to Phenol | ||
| 1 | Opaque, dark-red solutions | ✓ | ✓ |
| 2 | Reliable kinetics require carefully controlled conditions | ✓ | ✓ |
| 3 | Kinetic “burst” | ✓ | |
| 4 | Induction period | ✓ | |
| 5 | Filtrate remains catalytically active | ✓ | ✓ |
| 6 | Hg poisoning | ✓ | ✓ |
| 7 | PVPy poisoning | ✓ | ✓ |
| 8 | Pd particles detected by DLS and TEM | ✓ | ✓ |
