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…