Table 2.
Application scope.
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---|---|---|---|---|---|---|---|
Entry[a] | R | T [°C] | t [h] | Conv.[b] [%] | Yield[c] [%] | TON[d] | TOF[d] [h−1] |
1 | Ph | 60 | 8 | > 95 | 94 | 1880 | 235 |
2 | Ph | 25 | 8 | 25 | 24 | 480 | 60 |
3 | 4-Cl-C6H4 | 60 | 8 | > 98 | 96 | 1920 | 240 |
4 | 4-F-C6H4 | 60 | 8 | > 98 | 98 | 1960 | 245 |
5 | PhOCH2 | 60 | 8 | > 95 | 94 | 1880 | 235 |
6 | Ph2CHOCH2 | 60 | 8 | 71 | 70 | 1400 | 175 |
7 | ClCH2 | 60 | 8 | 89 | 88 | 1760 | 220 |
8 | vinyl | 60 | 8 | > 98 | 93 | 1860 | 232 |
9 | but-3-enyl | 60 | 8 | > 98 | 98 | 1960 | 245 |
10 | but-3-enyl | 25 | 20 | > 98 | 98 | 1960 | 98 |
11 | Me | 25 | 8 | 57 | 55 | 1100 | 137 |
12 | Me | 25 | 20 | > 95 | 88 | 1760 | 88 |
4 mmol scale (neat)
judged by 1H NMR of the reaction mixture
isolated yield after filtration over a short plug of silica
based on 1a. TON= turnover number; TOF= turnover frequency.