Synthesis of pyrazolines via 1,3-dipolar cycloaddition reactions

Among the large number of reports published on strategies applicable to the synthesis of pyrazolines and its analogs, The 1,3-dipolar cycloaddition offers a remarkably wide range of utility. Many 1,3-dipolar cycloaddition reactions used for the synthesis of pyrazolines provide better selectivity, eco-friendly, and less expensive chemical processes. In the presented study, we have reviewed various recently adopted strategies for the synthesis of pyrazoline which followed the 1,3-dipolar cycloaddition reactions mechanism and classified them based on starting materials.