Page 138 - Arrow Pushing in Inorganic Chemistry A Logical Approach to the Chemistry of the Main Group Elements

GROUP 14 ELEMENTS
118
The synthesis, which we won’t comment upon, may be summarized as follows:

Me Si SiMe 3 Me Si Me Si
3
3
3
SiMe 3 SiMe 3
SiMe 3
Li
Li KC 8
EX 2 E
THF Li THF, − 65 °C
SiMe 3
SiMe 3 SiMe 3
Me 3 Si SiMe 3 Me Si Me 3 Si
3
(4.51)
The reactivities of the divalent group 14 compounds so obtained have been studied in con-
siderable detail, and several reactions of the silylene are shown below:
Me 3 Si
SiMe 3
Me 3 Si SiMe 3 SiMe 3
H ROH Me 3 Si SiMe 3
Si Si
RO R = H
or
Me 3 Si SiMe 3 SiMe 3
R = Me
SiMe 3 Me 3 Si
Me 3 Si
SiMe 3 Me 3 Si
Me 3 Si SiMe 3 SiMe 3
H
HSiEt 3
Si Si Si
Et 3 Si
Me 3 Si SiMe 3 SiMe 3
Me 3 Si
SiMe 3 Me 3 Si
Me 3 Si
SiMe 3
Me 3 Si SiMe 3
X RX
Si Si
ClSiR 3
R
(4.52)
Me 3 Si Me 3 Si SiMe 3
SiMe 3 SiMe 3 Me 3 Si
R = Me, X = l Cl
or Si
R = Bu, X = Cl SiR 3
or
R = i-Pr, X = Cl SiMe 3
Me 3 Si
SiR 3 = SiMe 2 Cl
or
SiR 3 = SiMeCl 2
KC 8
Me 3 Si SiMe 3
SiMe 3 Me 3 Si

Si Si Si
SiMe 3 Me 3 Si
Me 3 Si SiMe 3