Unusual Reaction Constant for Hydride Transfer from a Carbanion to 9-Arylxanthyliums
作者:Fengrui Liu、Xiaoqing Zhu
DOI:10.1002/ejoc.201403023
日期:2014.11
The reaction constant (ρ) from the kinetics for hydride transfer from a carbanion (XH–) to 9-arylxanthylium ions (9-GPhXn+) in CH3CN was unusually negative. Thermodynamic analysis indicated that ρ for the simple hydride transfers (only involved with release and capture of a hydride anion) should be positive; this is in contrast to the kinetics results. Consequently, this reaction is not a simple hydride