Catalytic system for preparing N-Boc-aromatic amine compounds and preparation method and application thereof

The invention discloses a catalytic system for preparing N-Boc-aromatic amine compounds and a preparation method and application thereof. The catalytic system consists of palladium diacetate, phosphine XPhos and caesium carbonate, wherein the mol ratio of the palladium diacetate to the phosphine XPhos to the caesium carbonate is 1:3:(45-50). In the catalytic system, the palladium diacetate, the phosphine XPhos and the caesium carbonate have low price and are convenient and easy to obtain. By adopting the catalytic system, a corresponding coupling product can be prepared at high yield by taking BocNH2 and aryl halide as raw materials; in addition, the catalytic system has the advantages of mild reaction condition, easy operation, simple post treatment, wide range of action substrate, strong reaction specificity, high yield, less pollution to the environment and the like.