AN UNEXPECTED ELIMINATION OF CYCLOPENTADIENIDE ANION IN THE REACTION OF SILACYCLOHEXADIENES WITH A BULKY ARYLLITHIUM

Citation
K. Wakita et al., AN UNEXPECTED ELIMINATION OF CYCLOPENTADIENIDE ANION IN THE REACTION OF SILACYCLOHEXADIENES WITH A BULKY ARYLLITHIUM, Chemistry Letters, (7), 1998, pp. 687-688
Citations number
6
Categorie Soggetti
Chemistry
Journal title
ISSN journal
03667022
Issue
7
Year of publication
1998
Pages
687 - 688
Database
ISI
SICI code
0366-7022(1998):7<687:AUEOCA>2.0.ZU;2-3
Abstract
The reaction of silacyclohexadienes with an extremely hindered aryllit hium, TbtLi (Tbt = 2,4,6-tris[bis(trimethylsilyl)methyl]phenyl), gave no expected Tbt-substituted silacyclohexadienes but trihydrosilane, Tb tSiH(3), via the elimination of cyclopentadienide anion. By contrast, 1,1-difluoro-1-silacyclohexa-2,4-diene underwent a normal substitution though the yield was very low.