Reaction of triazolium precursors [MIC(CH ) - H ]I (n=1-3) with potassium hexamethyldisilazane (KHMDS) and AuCl(SMe ) generates the gold(I) complexes of the type MIC(CH ) ⋅AuI. Visible light exposure of the latter complexes promotes a spontaneous disproportionation process rendering gold(III) complexes of the type [{MIC(CH ) } ⋅AuI ] I . Both the Au and Au complex series were tested in the catalytic hydrohydrazination of terminal alkynes using hydrazine as nitrogen source.
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