| 摘要 |
The method can be used for preparing a p-hydroxymandelic compound comprising at least a step of condensing at least one aromatic compound bearing at least one hydroxyl group and of which the para position is free, with glyoxylic acid, the condensation reaction being conducted in at least one reactor provided with at least one mixing means, the specific mixing power being between 0.1 kW/m3 and 15 kW/m3. The invention further concerns a method for preparing a 4-hydroxy aromatic aldehyde by oxidising said p-hydroxymandelic compound. |
