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Catalyst Screening for Heck Reactions
| ||
|---|---|---|
| entry | catalyst | conversion (%)a |
| 1 | 4 | <5 |
| 2 | 5 | 96b |
| 3c | 5 | 68b |
| 4 | 6 | 50 |
| 5 | 7 | 25 |
| 6 | 8 | <5 |
| 7 | 9 | N.R. |
| 8d | 9 | N.R. |
| 9 | 10 | N.R. |
| 10 | 11 | N.R. |
| 11e | 5 | 98b |
Based on GC.
Yield of chromatographically pure materials.
Using 2 wt. % PTS/H2O.
Zn dust (20 mol %) used.
Reaction run in seawater for 1 h.
