Abstract
AbstractInsertion of tellurium into C–Li bonds of dilithiated 1,2‐dicarba‐closo‐dodecaborane(12) gave 1,2‐dicarba‐closo‐dodecaborano(12)‐1,2‐ditellurolate [(1,2‐C2B10H10)Te2Li2](Et2O) which, after reaction with 1,2‐dichlorotetramethyldisilane, afforded a six‐membered heterocycle containing the Te–Si–Si–Te unit with an annelated carborane moiety, characterized by multinuclear magnetic resonance and X‐ray structural analysis. As a byproduct, a five‐membered ring containing a Si–Si–Te unit was formed, which was obtained as a major product, using conditions favouring partial insertion of tellurium into C–Li bonds. Treatment of [(1,2‐C2B10H10)Te2Li2](Et2O) with dichlorodimethylsilane led to a five‐membered heterocycle as a major product containing a Te–Te–Si unit. Various decomposition/hydrolysis/oxidation products could be identified by multinuclear magnetic resonance, among them most notably 1,2‐di(hydrotelluro)‐1,2‐dicarba‐closo‐dodecaborane(12).
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