The reaction of 8-dimethylamino-1-naphthyllithium diethyl etherate with tellurium powder and subsequent O 2 oxidation was reinvestigated. Besides the previously reported bis[8-(dimethylamino)naphthyl] ditelluride ( 1 ), the new bis[8-(dimethylamino)naphthyl] tritelluride ( 2 ) was isolated in 42% yield and fully characterized. Low-temperature 125 Te NMR spectroscopy provides evidence to suggest that analytically pure 2 is in equilibrium with 1 and bis[8-(dimethylamino)naphthyl] tetratelluride ( 2a ).
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Beckmann et al. (2009) studied this question.
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