Table 1 Optimization of electrochemical oxidation of benzyl alcohol 1aa
From: Direct electrochemical oxidation of alcohols with hydrogen evolution in continuous-flow reactor
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|---|---|---|---|---|---|
Entry | Current | Reaction time | Current density | Flow rate | Yield (%)a |
1b | 100 mA | 1 h | 44.44 mA cm−2 | Undivided cell | 37 |
2 | 10 mA | 10 h | 0.64 mA cm−2 | 0.10 mL s−1 | 93 |
3 | 50 mA | 2 h | 3.19 mA cm−2 | 0.10 mL s−1 | 92 |
4 | 100 mA | 1 h | 6.38 mA cm−2 | 0.10 mL s−1 | 89 |
5 | 500 mA | 12 min | 31.89 mA cm−2 | 0.10 mL s−1 | 90 |
6 | 800 mA | 8 min | 51.02 mA cm−2 | 0.10 mL s−1 | 91 |
7 | 1000 mA | 6 min | 63.78 mA cm−2 | 0.10 mL s−1 | 81 |
8 | 800 mA | 10 min | 51.02 mA cm−2 | 0.10 mL s−1 | 99 |
9 | 800 mA | 10 min | 51.02 mA cm−2 | 0.05 mL s−1 | 67 |
10 | 800 mA | 10 min | 51.02 mA cm−2 | 0.15 mL s−1 | 95 |
11 | 800 mA | 10 min | 51.02 mA cm−2 | 0.20 mL s−1 | 84 |
