Table 2. AA Yields (mol %) and Reaction Conditions of DODH Experiments Performed in the Presence of a Series of Reducing Agents and Employing GL as the Substrate, MTO as the Catalyst, and MOIm-TFSI as the IL.
| reducing agent | 2,4-dimethyl-3-pentanol | 2,4-dimethyl-3-pentanol | sodium metabisulfite | PPh3 | PPh3 | PPh3 | PPh3 |
|---|---|---|---|---|---|---|---|
| amount (mmol) | 7.2 | 21.6 | 10.5 | 7.6 | 7.6 | 7.6 | 7.6 |
| GL (mmol) | 5.4 | 2 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 |
| MTO (mmol) | 0.06 | 0.02 | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 |
| MOIm-TFSI (g) | 1.5 | 1 | 1.5 | 1.5 | 3 | 3 | 4.5 |
| reaction time(h) | 22 | 22 | 22 | 22 | 22 | 30 | 30 |
| AA yields (mol % of AA) | 32 | 56 | 43.5 | 63 | 80 | 92 |