Alkaline heterogeneous catalyst for nitrogen formylation reaction and preparation and application thereof

Abstract

The invention relates to an alkaline heterogeneous catalyst and a preparation method and application thereof, in particular to an alkaline heterogeneous catalyst applied to a nitrogen formylation reaction, which comprises a metal component and an organic ligand copolymer, and the organic ligand copolymer is a copolymer which is generated through solvothermal copolymerization of a phosphine ligand containing vinyl functionalization and an organic alkali monomer containing vinyl functionalization and has a large specific surface area and a hierarchical pore structure. On one hand, organic alkali is introduced into the copolymer carrier, so that the solid heterogeneous catalyst has alkalinity, the forward movement of nitrogen formylation reaction is promoted, and the reaction activity is improved; and on the other hand, the metal components and P atoms of the copolymer carrier are highly dispersed and stably exist on the carrier due to coordination. Therefore, the alkaline heterogeneous catalyst provided by the invention has excellent nitrogen formylation reaction performance and stability; and the catalyst is easy to separate from reactants and products, and has a wide industrial application prospect.

Description

Technical field [0001] The present invention relates to an alkaline polyhase catalyst and a preparation method and application thereof for a nitrogenation reaction, and is a multi-phase catalytic technology. Background technique [0002] The formation reaction of the amine is one of the most organic synthesis and medical chemistry. The formamide is an organic synthesis important intermediate and is widely used in synthesizing various drugs. The formamide can be used as an organic synthetic raw material, a paper treatment agent, a softener of the fiber industry, can also be used as an analytical reagent for measuring the amino acid content of the rice; and the formamide is also an advantal organic solvent, which can be used for separating chlorosilane, purifying oil. Further, in addition, the formation of the formamide has a lively reactivity, and a variety of reactions can occur, except for three hydrogen participation in reaction, dehydration, de-removal CO, introduction of amin...

AI Technical Summary

Problems solved by technology

[0004] The homogeneous catalytic system has higher catalytic activity and selectivity of the target product under milder reaction conditions, but it is difficult to separate the catalyst from the reaction material

Compared with homogeneous catalysis, the biggest advantage of heterogeneous catalysis is that the catalyst and the reaction materials are easy to separate. The main problems are harsh reaction conditions and relatively low reactivity.

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