Chloro[tris(2,4-di-tert-butylphenyl)phosphite]gold is primarily used in specialized catalytic processes, particularly in organic synthesis. It acts as an efficient catalyst in reactions such as hydroamination and hydroalkoxylation, where it facilitates the addition of nitrogen or oxygen atoms to unsaturated hydrocarbons. This compound is also employed in the synthesis of complex organic molecules, including pharmaceuticals and fine chemicals, due to its ability to enhance reaction selectivity and yield. Additionally, it finds application in the production of advanced materials, where its unique catalytic properties contribute to the development of polymers and other high-performance compounds. Its stability and effectiveness in various reaction conditions make it a valuable tool in both academic research and industrial applications.