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Catalyst loading optimization for decarboxylation.
| |||||
|---|---|---|---|---|---|
| entry | mol % AgOAc | Conversion (%)a | E/Zb | ||
| 1 h | 2 h | 3 h | |||
| 1 | 15.0 | 100 | - | - | 96:4 |
| 2 | 10.0 | 100 | - | - | 96:4 |
| 3 | 5.0 | 96 | 100 | - | 96:4 |
| 4 | 2.5 | 22 | 22 | 22 | 96:4 |
| 5 | 2.5c | 23 | 23 | 23 | 96:4 |
| 6 | 5.0 c | 100 | - | - | 96:4 |
Conversion of 10b to 10c as measured by HPLC (220 nm).
E/Z ratio from HPLC.
Two volumes of NMP instead of three volumes.
