Synthesis of Pyrazolyl Pyrrolidines by 1, 3-Dipolar Cycloaddition using Azomethine Ylide

1, 3-Dipolar cycloaddition is a fundamental tool for the synthesis of a number of five membered heterocyclic compounds. In this paper, a series of pyrazolyl pyrrolidine derivatives have been synthesized by reacting substituted pyrazole aldehydes with benzyl ethyl glycinate followed by azomethine cycloaddition. Synthesized compounds were characterized by using various spectroscopic techniques.