4-isopropenylphenol

We are engaged in manufacturing, exporting and supplying excellent quality 4-Isopropenylphenol to our valuable clients. 4-isopropenylphenol is a fine chemical intermediates, present a rare synthesis of the substance, because a customer order, so I have access to relevant information, to find a more economical synthetic route.
4-isopropenylphenol (PIPH) is actually a synthesis of bisphenol A by-product of the synthesis reaction of bisphenol A Bisphenol A is generated at the same time, there will be OP, OO, trisphenol, linear dimer cyclic compound ( CD), linear dimer copolymer (COD) and other isomer or impurities generation, affect the color and purity of bisphenol A, in order to prevent the process leading to the accumulation of cyclic byproduct phenol, isomers, its catalytic cleavage is an important tool. At present, some foreign companies are basically have this technology. The process is at a high temperature, vacuum, adding a basic catalyst condition heavies catalytic cracking, produce phenol after cleavage of isopropenylphenol (PIPH) and other light components, the light components fractionation, condensation, dilution After feeding containing macroporous cation exchange resin of the reforming reactor, the rearrangement of bisphenol A., bisphenol A after cleavage, can generate a PIPH and a phenol