3,4-dihydroxybenzoic acid is an important intermediate of medicine and chemical industry, which is widely used in the fields of medicine and chemical industry. Therefore, there is a great demand for 3,4-dihydroxybenzoic acid at home and abroad. 3,4-dihydroxybenzoic acid can play a variety of medical functions in medicine, such as antibacterial, anti-inflammatory, anti-tumor, anti-oxidation, analgesic, nerve protection and so on.
How can 3,4-dihydroxybenzoic acid be mass-produced? 4 hydroxyl 3 methoxybenzoic acid can be obtained by vanillin as raw material under the action of organic solvent and oxidation catalyst, and then under the action of demethylation reagent, methyl is removed to get 3,4-dihydroxybenzoic acid. The production process is simple, and the yield and purity of 3,4-dihydroxybenzoic acid are high, and the synthesis cost is low, so it is suitable for industrial production.