重氮化合物是一类环境友好、高效的反应试剂,已经被广泛应用于金属卡宾C—H插入反应.近些年,重氮化合物在一种新型的催化模式下参与到过渡金属催化的C—H活化反应中,能够实现芳烃和杂芳烃C—H键的烷基化反应.综述了各种金属催化下重氮化合物参与的C—H烷基化反应,以及相关的环化反应的最新研究进展,主要介绍各反应的特点、反应机理和合成应用,并展望它的发展前景. Diazo compounds are an environmentally friendly and efficient reaction reagents and have been widely used in the C-H insertion of metal carbenes. In recent years, diazo compounds have been involved in the transition metal catalyzed C- H activation reaction can realize the alkylation of C-H bonds between aromatic and heteroaromatic hydrocarbons.The recent research on various C-H alkylation reactions of metal-catalyzed diazo compounds and their related cyclization reactions Progress, the main features of each reaction, reaction mechanism and synthesis applications, and prospects of its development prospects.