Studied On The Catalytic Performance Of Mesoporous Mordenite Supported Pd Species For Bulky Molecule’s C-H Bond Activity

As the catalysts and catalyst carriers, the molecule seives have beenwidely used in the petrochemical and fine chemical production for theirsuperior catalytic performance. The traditional zeolites can’t used tocatalyze bulky reaction for the limitation of their micropores. Recently,the mesoporous zeolites were synthesis by inducing the mesopores intothe traditional zeolites are largely decreased the diffusion resistance ofbulky molecule, which have been used to bulky molecule reaction, suchas the HDS of4,6-DMDBT. Herein, basis of the zeolite’s properties, Pdspecie’s superior catalytic performances, and metal-catalyzed organicreaction’s features, new-type catalysis systems of Pd supported onmesoporous zeolites were used to catalyze bulky C-H bond reaction.This thesis was divided into two parts:Part I: Palladium supported on mesoporous mordenite for catalyzingthe coupling reaction of the phenylpyridine with iodobenzene and itsderivatives. It is found that the mesoporous catalysts show highlyselectiveity and conversion for this coupling reaction. Part II: Studied the palladium supported on mesoporous USY zeolitefor catalyzing the decarboxylation coupling reation of the thiophene withcarboxylic acid organics. It is also found that the Pd/USY show superiorcatalytic performance for the decarboxylation coupling reation of thebulkly molecules.According to the frame of the above parts, the detail researches andingoing discussion were conducted in this thesis. We preliminary realizedthe application of mesoporous zeolite supported palladium catalyst to thefield of organic synthesis. Relative to the homogeneous catalysts, thecatalyst used in this work were easy to separate and recycle, whichcontribute to the protection of the environment.