3, 3apos is applied to an electronic material; , 5, 5apos; preparation method of-tetramethyl biphenol

The invention belongs to the technical field of synthesis of 3, 3 ', 5, 5'-tetramethyl biphenol, and particularly relates to a preparation method of 3, 3 ', 5, 5'-tetramethyl biphenol applied to an electronic material. The method comprises the following steps: by taking 2, 6-dimethyl biphenol as a raw material, sequentially carrying out oxidation reaction and reduction reaction under an alkaline emulsification condition and the action of a catalyst to obtain a 3, 3 ', 5, 5'-tetraalkyl biphenol crude product, and carrying out multi-step purification and separation to obtain a 3, 3 ', 5, 5'-tetraalkyl biphenol pure product. The purity of the prepared 3, 3 ', 5, 5'-tetramethyl biphenol reaches up to 99% or above, the metal ion content is low, meanwhile, organic solid waste generated in the purification process is recycled, and the conversion rate of the 3, 3 ', 5, 5'-tetramethyl biphenol is increased. 本发明属于3,3',5,5'-四甲基联苯二酚合成技术领域，具体涉及应用于电子材料的3,3',5,5'-四甲基联苯二酚的制备方法。本发明以2,6-二甲基联苯二酚为原料，在碱性乳化条件、催化剂作用下依次进行氧化反应、还原反应，得