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Paper | Regular issue | Vol 31, No. 5, 1990, pp.825-832
Published online, 1st January, 1970
DOI: 10.3987/COM-89-5158
Triazolium Salts, II: Derivatives of 4,5-Dihydro-5,5-dimethyl-1,2,4-triazol-3-one

Joachim G. Schantl,* Norbert Lanznaster, and Hubert Gstach

*Institut für Organische und Pharmazeutisch Chemie, Universität Innsbruck, Innrain 52, A-6020 Innsbruck, Austria


The title compound 1a was converted into novel N-4-substituted derivatives. Catalytic hydrogenation of 1a yielded the triazolidin-3-one 3, the cyclotautomer of acetone semicarbazone 4. Meerwein salts alkylated the diazene function of 1a at N-2 affording the triazolium salts 5.