Synthéses de bitriazoles-3(-5),1′ méthylés en position 1 ou 4 et de bitriazoles-4,4′

The synthesis of bitriazoles linked by C₃₍₅₎-N₁ or N₄-N₄′ bonds is reported and discussed. Two reactions have been investigated: a nucleophilic substitution of the halotriazole halogen by the triazole anion itself and a desulfurization reaction of the bis-s-triazolothiadiazines by the Raney Nickel. The determination of the structure of these bitriazoles is demonstrated by nmr spectroscopy. Their uv spectra are also reported.