Construction And Application Of Organic Porous Materials OMF And Porous Orangic Polymers Loaded With Ni

Porous organic materials include Porous Orangic Polymers?POPs?,metal organic frameworks?MOFs?,and covalent organic frameworks?COFs?.They are often used for heterogeneous catalysis.because of their high specific surface area and pore size,and their high stability to heat,water,and most organic solvents.At the same time,these three kinds of materials have good catalytic properties,and the active sites on them can be fully combined with the substrate and transported efficiently in the catalyst channel.As a heterogeneous catalyst,it not only has excellent catalytic activity but also can be recycled for many times,so porous organic materials have more and more important applications in chemistry and industry.?.Ni-Pops heterogeneous catalysts.Using the sonogashira reaction of schiff base ligands with nickel and 1,3,5-triethynyl benzene,the Ni@pops heterogeneous catalyst with high catalytic activity was prepared and applied to the suzuki reaction.This study realized the substitution of nickel for palladium,and the catalytic efficiency could be recycled five times without significant reduction,so it has a great application prospect.?.Pt-OMF heterogeneous catalysts.A new type of organometalic framework with high crystallinity was prepared under solvent-hot conditions with tridentate isonitrile and palladium iodide.OMF,as a heterogeneous catalyst,has high catalytic activity and can exist stably in both air and acid base conditions.The catalyst can be recycled for more than five times without significant reduction in catalytic efficiency and selectivity.?.PdI₂-OMF heterogeneous catalyst.Based on the study of trisonitrile,disodontal aldehyde linked with palladium iodide was designed to prepare OMF linked with schiff base by reacting with melamine,and it was intended to be used in heterogeneous catalysis.This study shows that porous organic materials play an important role in heterogeneous catalytic reactions,and the obtained heterogeneous catalysts have high selectivity and catalytic activity,providing new catalysts for organic reactions.