Table 2. Catalytic Performance of PN- and PP-Based Mn(I) Methyl Complexes in the Dimerization of Phenylacetylenea.
| catalyst | conversion [%] | Z/E |
|---|---|---|
| PN1 | 75 | 95:5 |
| PN2 | 35 | 96:4 |
| PN3 | 14 | 90:10 |
| PN4 | 12 | 90:10 |
| PN5 | n.d. | n.d. |
| PN7 | n.d. | n.d. |
| PN6 | trace | n.d. |
| PN8 | n.d. | n.d. |
| PP3b | >99 | 96:4 |
| PP2b | 67 | 79:21 |
| PP4 | 36 | 91:9 |
| PP5 | n.d | n.d. |
| none | n.d | n.d. |
Reaction conditions: phenylacetylene (0.600 mmol, 1.00 equiv), catalyst (0.012 mmol, 2.00 mol %), THF (1 M), 80 °C for 18 h; conversion, E/Z ratio detected by GC-MS, n.d. = not detected.
Data taken from ref (17).
