通过有机配体的设计及其金属有机化合物的制备，系统开展含富电性大位阻膦配体钯配合物的合成、表征和性能研究；研究其对苯环C-H活化直接芳基化反应的催化活性，研究配体电性和空间位阻效应的作用机理与催化活性的关系。结合通过加大配体的富电子特性和增大配体的空间位阻，有助于工业上容易制备、价格便宜、适合大规模工业生产的氯代芳烃的氧化加成和还原消除反应，筛选出能在温和条件下催化氯代芳烃参与C-H活化直接芳基化反应更新型、高效、实用的过渡金属配合物催化剂和催化体系。

Studies on synthesis, characterization and properties of palladium complexes with electron-rich, sterically bulky phosphanes ligands will be systematically developed by designing new ligands and transition metal complexes. The correlation between catalytic activities of palladium complexes for C-H bond arylation of aromatic compounds and electron-rich, sterically bulky behaviour of ligands will be evaluated. In combination with the development of structural diversity of electron-rich and sterically bulky ligands, increases propensity of the more electron-rich catalyst to an oxidative addition of aryl chloride，which represents the comparatively inexpensive, readily available and the most attractive candidates for industrial applications, and an easier decomplexation of aryl chloride. The more novel, efficient and practical transition metal complex catalysts and catalytic systems will be designed and synthesized for C-H bond arylation of aryl chlorides and aromatic compounds under mild condition.