THE CHEMISTRY OF SILOLES. SYNTHESIS AND REACTIONS OF η6-CHROMIUM TRICARBONYL

Article abstract of DOI:10.1016/0022-328X(84)85194-3

η⁶-<1-Methyl-1-(trimethylsilyl)dibenzosilacyclopentadiene>chromium tricarbonyl (II) was prepared by the reaction of 1-methyl-1-(trimethylsilyl)dibenzosilole with chromium hexacarbonyl.The reaction of II with methyllithium in THF gave η⁶-(1,1-dimethyldibenzosilacyclopentadiene)chromium tricarbonyl.Similar reaction of II with butyllithium, followed by oxidation, gave 1-butyl-1-methyldibenzosilole and 1,1-dibutyldibenzosilole, while reaction with (methyldiphenylsilyl)lithium under similar conditions afforded 1-methyl-4-(methyldiphenylsilyl)-1-(trimethylsilyl)dibenzosilole.