Advances in Three-Component Coupling Reactions Involving CO2
Carbon dioxide(CO2)is the attractive green and renewable C1 resource,and its direct participation in organic syn-thesis reactions as a reaction feedstock or promoter,which is a research direction advocated by green chemistry.On the other hand,the three-component coupling reaction is considered to be one of the most attractive strategies in synthetic chemistry,which is capable of synthesizing complex molecules directly from simple and readily available raw materials.Based on this,this paper reviews the three-component coupling reaction systems involving CO2 as a raw material or promoter,categorizes them according to the types of products generated:carboxyl,ester,carbonyl,haloalkyl,and cyano compounds as well as CO2 as a promoter.An outlook on the development of such reactions is also given.