Generation and aromaticity of 2-silaimidazolium ion, a new pi-conjugated silylium ion.
A novel cationic silaaromatic, 2-silaimidazolium cation (5), was synthesized by chloride abstraction from the corresponding chlorosilane (4) with [Et3Si(benzene)]+.TPFPB- (TPFPB- = tetrakis(pentafluorophenyl)borate); cation exists as a free silylium cation in solution due to bulky substituents on the five-membered ring.
Ishida
Shintaro
S
Institute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan.
Nishinaga
Tohru
T
West
Robert
R
Komatsu
Koichi
K