| abstract |
The invention relates to a catalyst used in preparation of N-substituted carbamate and a preparation method and application thereof. The active ingredient of the catalyst is heteropolyacid, and the component of a catalyst carrier is metallic oxide or metalloid oxide. The catalyst provided by the invention can promote the reaction of carbamate and amine to prepare the N-substituted carbamate with high yield, and the reaction has relatively mild reaction conditions, high catalytic activity and reaction selectivity and relatively short reaction time; and the catalyst can be conveniently separated from a reaction system, can be reused, and is convenient for amplification and industrial application. |