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Review | Regular issue | Vol 87, No. 3, 2013, pp.493-526
Published online, 7th December, 2012
DOI: 10.3987/REV-12-755
Direct Routes to 2H-Tetrazoles by Cyclization and Ring Transformation

Dietrich Moderhack*

*Institute of Medicinal and Pharmaceutical Chemistry, Technical University, Braunschweig, Beethovenstrasse 55, Germany

Abstract

This review summarizes the known routes to the title compounds that were formed from cyclization of open-chain precursors and ring transformation of non-tetrazolic heterocycles, i.e. procedures that are not based on ring substitution of the corresponding N-unsubstituted tetrazoles.