Developments in Tetrazole Chemistry (2009–16)

Abstract This short review compiles the main results of the studies in tetrazole chemistry published in the period 2009–2016. Attention is directed to the structure, reactivity, synthetic problems, functionalization, and also to the application of derivatives of this class of polynitrogen heterocyclic compounds. New conditions are revealed of the tetrazole synthesis underpinned by the use of versatile catalytic systems, ionic liquids, superacids, microwave activation, microreactor techniques, etc. Main trends in the development of the tetrazole chemistry that are helping to focus the efforts of researchers on novel, important, and promising directions of study are considered.