Advances in Tetrazole Synthesis – An Overview

Abstract Most of the active pharmaceutical ingredients (API) contain the tetrazole ring, thus making them of vast significance in new drug design descriptors. With this importance in view, enormous studies are being carried out on the synthesis of tetrazole derivatives. The methods of its synthesis are [3+2] cycloaddition, multicomponent reactions, microwave‐assisted synthesis using heterogeneous and homogeneous catalysts. Hence, it is necessary to highlight the green catalysis that would be more environmentally benign and economically viable. In this review, we discuss the tetrazole synthesis processes carried out in the presence of heterogeneous and homogeneous catalysts. These catalytic materials gave higher product yield in a shorter reaction time and were reusable.