AN ALKYLLITHIUM COMPOUND WITH A FREE PLANAR CARBANION - THE CRYSTAL-STRUCTURE OF [LI(THF)(4)][C(SIME2C6H4ME-O)(3)]

Authors
ALMANSOUR AI EABORN C HAWKES SA HITCHCOCK PB SMITH JD
Citation
Ai. Almansour et al., AN ALKYLLITHIUM COMPOUND WITH A FREE PLANAR CARBANION - THE CRYSTAL-STRUCTURE OF [LI(THF)(4)][C(SIME2C6H4ME-O)(3)], Organometallics, 16(26), 1997, pp. 6035-6037
Citations number
17
Journal title
Organometallics → ACNP
ISSN journal
02767333
Volume
16
Issue
26
Year of publication
1997
Pages
6035 - 6037
Database
ISI
SICI code
0276-7333(1997)16:26<6035:AACWAF>2.0.ZU;2-7
Abstract
The title compound, 1, has been made by an improved method involving t reatment of (o-MeC6H4Me2Si)(3)CH with LiBu in the presence of tetramet hylethylenediamine in a hexane-heptane mixture at room temperature fol lowed by crystallization of the product from a mixture of heptane and tetrahydrofuran (THF). In contrast to solid Li{C(SiMe2Ph)(3)}(THF), wh ich has a molecular structure with a C-Li bond and a Ph-Li interaction , 1 contains a discrete planar carbanion with no such interaction.