Evidence for formation of silenes strongly influenced by reversed Si[double bond]C bond polarity.
[reaction: see text] Transient silenes that are strongly influenced by reversed Si[double bond]C bond polarization are formed upon heating of tris(trimethylsilyl)silylamides. The silenes are trapped with 2,3-dimethyl-1,3-butadiene to quantitatively yield only one of the possible diastereomers of the functionalized cyclic allylsilanes.
El-Sayed
Ibrahim
I
Department of Organic Chemistry, Institute of Chemistry, Box 531, Uppsala University, 751 21 Uppsala, Sweden.
Guliashvili
Tamaz
T
Hazell
Rita
R
Gogoll
Adolf
A
Ottosson
Henrik
H