Preparation method of isorphenylene diene_Kain Industrial Additive

background and overview[1] mesophenylene diacetylene has very important uses in pharmaceutical synthesis, liquid crystal materials, aerospace materials, etc.; the industrial production of high-purity m-phenylene diacetylene is very difficult. there are methods to use m-dibromobenzene as raw material, and 2- methyl-2-hydroxybutyne undergoes a hack reaction in the presence of a palladium catalyst, and then hydrolyzes to…