| abstract |
The invention relates to the technical field of organic synthesis, in particular to a preparation method of low-energy-consumption 4,4 'biphenol, which comprises the steps of firstly preparing a palladium-supported catalyst, then preparing 4,4' -diacetylbiphenyl in the air at normal temperature through self-coupling reaction of arylphenylboronic acid under the ultrasonic condition, reacting at normal temperature, and obtaining 4,4 '-diacetyloxy biphenyl through Baeyer-Villiger oxidation reaction of the 4,4' -diacetylbiphenyl, wherein the conversion rate is high; the preparation method provided by the application has the advantages that the whole reaction process is mild, the required energy consumption is low, the post-treatment of the product is simple, and the yield is high; in addition, the preparation method has low requirement on equipment, and can better meet the requirement of mass production. |