Preparation method of silicon oxide modified metal-based catalyst and application of silicon oxide modified metal-based catalyst in preparation of cyclic amine compounds

The invention relates to the field of catalysts, and discloses a preparation method of a silicon oxide modified metal-based catalyst and application of the silicon oxide modified metal-based catalyst in preparation of cyclic amine compounds. The preparation method comprises the following steps: 1) adding a silicon oxide precursor into a mixed solution of water and ethanol; 2) adding metal powder and an alkaline solution, and stirring for reaction; the metal powder is selected from palladium carbon, platinum carbon, ruthenium carbon, rhodium carbon, iron powder, copper powder, cobalt powder, nickel powder and Raney nickel; 3) washing, centrifuging and drying; 4) calcining in air; and 5) reduction in hydrogen. After the surface of a conventional metal catalyst is modified by amorphous silicon oxide, the surface structure property and substrate adsorption configuration of the metal catalyst can be changed, and when the metal catalyst is applied to catalytic hydrogenation of quinoline derivatives to prepare cycli