Abstract
In recent decades, a large number of reports related to the synthesis of N-, O- and S-containing heterocycles have appeared owing to a wide variety of their biological activity. The investigation of methods for the chemical synthesis is a growing area of interest due to increasing environmental issues. The use of catalysts in organic reactions has gained extensive interest. Metal and nonmetal catalysts provided a new improved alternative to traditional methods in modern synthetic chemistry. The aim of present review is to focus on the applications of nickel for the synthesis of five-membered heterocylces.
GRAPHICAL ABSTRACT
![](/cms/asset/cfd6a815-5cef-4672-9f5e-fb6ac58cbf56/lsyc_a_1594306_uf0001_b.jpg)