Methods for the synthesis of condensed 1,2,3-triazoles, including mesoionic compounds, in the literature up to 2007 inclusively
are presented. They are classified according to the method by which the molecular skeleton is formed. Mesoionic condensed
compounds of the 1,2,3-triazole series are examined separately.
Keywords azides - diazo compounds - 1,2,3-triazoles - condensed heterocycles - mesoionic compounds - rearrangements - cyclization - cycloaddition
Dedicated to Academician Boris Aleksandrovich Trofimov on his seventieth jubilee.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1295–1330, September, 2008.