Yj. Kang et al., SYNTHESIS, CHARACTERIZATION AND REACTIVITY OF CP(C2H4) CO(O-ME2SIC6H4SIME2) - A MODEL-COMPOUND OF SELECTIVE DOUBLE SILYLATION, Journal of organometallic chemistry, 532(1-2), 1997, pp. 79-82
o-Bis(dimethylsilyl)benzene (1) reacts with cyclopentadienylbis(ethyle
ne)cobalt at room This reaction results in overall double Si-H activat
ion, generating the disilacobaltacycle complex Cp(C2H4)Co(o-Me2SiC6H4S
iMe2) (3). Complex 3 was characterized by X-ray diffraction. 1,2,4,5-T
etrakis(dimethylsilyl)benzene reacts with CpCo(C2H4)(2) to give l-1,3-
disilacobaltacycle-7,8-disilacyclopent-6-ene (4). Complex 4 was charac
terized by X-ray diffraction and found to contain a zo-7,7,8,9,9-penta
methyl-7,9-disilacyclopent-6-ene via 1,1-double silylation.