prov:value
| - Such method may comprise purification by extraction, for example, by washing the diacetal, immediately after preparation, with water or a suitable organic solvent such as n-hexane, toluene, xylene, methanol, ethanol, isopropanol, cyclohexane, etc.; or may comprise drying the diacetal, immediately after preparation, under reduced pressure to remove the above aromatic aldehyde and dialkyl acetal fro
|