17865-73-5Relevant academic research and scientific papers
Unusual exchange of functional groups at the silicon and metal atoms
Levitskii,Zavin,Karpilovskaya,Chernyavskii
, p. 1614 - 1616 (1998)
Reactions of α,ω-dichlorooligosilanes with metal hydroxides in the presence of pyridine results in the exchange of halogen and oxygen atoms and the formation of cyclic siloxyoligosilanes and pyridine complexes of metal halides. The metallosiloxane groups are not formed. A scheme for the transformations observed is proposed.
Synthesis of tellurasila cycles containing an annelated dicarba-closo-dodecaborane(12) unit: Structure of a 1,4-ditellura-2,3- disilacyclohexane derivative
Wrackmeyer, Bernd,Klimkina, Elena V.,Milius, Wolfgang
, p. 398 - 408 (2013/03/28)
Insertion 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)Te2Li 2](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). The reactions of 1,2-dicarba-closo- dodecaborano(12)-1,2-ditellurolate with chlorosilanes afforded five-membered silatellura heterocyles containing the TeSiSi or TeTeSi moiety linked with the C2 unit of 1,2-dicarbadodecaborane(12) in addition to the six-membered heterocycle containing the TeSiSiTe fragment. Copyright
