Method for preparing 2-benzoyl-1, 10-phenanthroline

The invention provides a method for preparing 2-benzoyl-1, 10-phenanthroline, and relates to the field of olefin polymerization. The preparation method comprises the following steps: reacting a compound a with a compound b in a solvent to obtain a compound c; wherein X is halogen. According to the preparation method disclosed by the invention, the phenyl Grignard reagent and cyano group are subjected to addition reaction to directly synthesize the 2-benzoyl-1, 10-phenanthroline. By adopting the method for preparing the 2-benzoyl-1, 10-phenanthroline, the operation can be simplified, the reaction steps are shortened, the production cycle is shortened, the production cost is reduced, the production efficiency is improved, the use of highly toxic chemicals is reduced, the production safety is improved, and the pollution to the environment is reduced. The preparation method provided by the invention overcomes the problems of the existing method for preparing 2-benzoyl-1, 10-phenanthroline, and has a good applicat