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Review | Regular issue | Vol 92, No. 2, 2016, pp.185-233
Published online, 14th January, 2016
DOI: 10.3987/REV-15-833
■ Mesoionic Tetrazoles – Progress Since 1980

Dietrich Moderhack*

*Institute of Medicinal and Pharmaceutical Chemistry, Technical University, Braunschweig, Beethovenstrasse 55, D-38106, Germany

Abstract

This article summarizes the findings made during the past decades with the traditional classes of mesoionic tetrazoles of type (A) and (B); it also deals with the 'abnormal' carbenes derived therefrom. – Emphasis is placed on preparative aspects.