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Accession number;02A0418853
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| Title;New Si-Te Bond Cleavage Routes to Silyllithium Compounds: The First Example of Tellurium-substituted Silyllithium. |
| Author;
KAWACHI ATSUSHI
(Inst. for Chem. Res., Kyoto Univ.)
KATAOKA TAKESHI
(Inst. for Chem. Res., Kyoto Univ.)
TAMAO KOHEI
(Inst. for Chem. Res., Kyoto Univ.)
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Journal Title;Nippon Kagakkai Koen Yokoshu
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Journal Code:S0493A
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ISSN:0285-7626
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VOL.81st;NO.1;PAGE.1(2002)
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| Figure&Table&Reference; |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;We have developed new methods for silyllithium synthesis based on the cleavage of a silicon-tellurium bond in tellurosilanes and succeeded to prepare a tellurium-substituted silyllithium for the first time. First, the tellurium-lithium exchange reaction of di(phenyltelluro)dimesitylsilane with phenyllithium(2.2mol amounts) in THF at 223K afforded (phenyltelluro)dimesitylsilyllithium in 80% yield. Second, the reductive cleavage of the silicon-tellurium bond of the same ditellurosilane with lithium naphthalenide(3.0mol amounts) in THF at 223K gave the same silyllithium compound in 73% yield. The generality of these methods and the chemistry of [(telluro)silyl]lithium will be reported. (author abst.) |
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