Synthesis and Properties of an Overcrowded Silabenzene Stable at Ambient Temperature.
Solid-state, room-temperature stability for silabenzene 1 is granted by the bulky silane rendering kinetic inertness. Silabenzene 1 is synthesized in good yield from the crowded chlorosilane 2 with tert-butyllithium. The delocalized, aromatic nature of 1 was confirmed by NMR spectroscopy and the (1)J(Si-C) value, as well as calculations on an analogous silabenzene.
Wakita
K
Department of Chemistry, Graduate School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan).
Tokitoh
N
Okazaki
R
Nagase
S