Study On Catalytic System Of Rhodium Complexes For Olefin Hydrogenation

Hydrosilylation is an important means for preparing carbon functional silicone monomers and silicone polymer. Many functional group-containing organosilicon monomers or polymers which are difficult to be synthesized can be produced through hydrosilylation processes.The applicability of hydrosilylation is much broader than other methods and richer product can be obtained by this means. Furthermore, hydrosilylation process has many advantages, including a mild reaction, simple control, high product purity and yield and so on. The key role of hydrosilylation reaction is the study of high-performance catalysts(high stability, high activity and high selectivity).In recent decades, the research of the phosphine ligands-containing rhodium complexes is more and more depth. The design and synthesis applications of hydrosilylation catalysts have become a hot topic in the field, especially the design and application of triphenylphosphine rhodium complexes have greatly attracted attention of chemists. The study of rhodium complex catalyst containing phosphine ligands more than 30 years in hydrosilylation, it can be used to the hydrosilylation of alkenes, alkynes, carbonyl compounds, Wilkinson catalyst [(PPh3) 3RhCl] was most widely used. On the basis of previous work, this paper designed several silicon-containing triphenylphosphine ligands, and then these ligands were used for hydrosilylation of olefins catalyzed with rhodium trichloride.In this thesis, several rhodium imine complexes have been synthesized, and the hydrosilylation of olefins catalyzed with rhodium imine complexes were investigated.