ИСТИНА

Functionalized magnetic nanoparticles (NPs) were shown to be excellent candidates for the development of magnetically recoverable catalysts. The goal of the present project is to synthesize magnetically controllable catalysts based on magnetic nanoparticles and polyphenylenepyridyl dendrons​/dendrimers of different structure and generations. It was discovered that the dendron​/dendrimer structure, their generation, and the concn. in the reaction medium det. the size and shape of magnetic iron oxide NPs. Complexation of metal compds. with pyridine moieties of the dendron​/dendrimer NP shells followed by redn. results in catalytic NPs whose characteristics depend on the dendron​/dendrimer structure, metal compd. and reducing agent types. The catalytic properties of magnetically recoverable catalysts in hydrogenation have been examd. High catalytic activity and selectivity along with high catalyst stability make them promising candidates for catalytic applications in fine org. syntheses.