Preparation and Configurational Stability of Chiral Chloro-[D<sub>1</sub>]methyllithiums of 98% Enantiomeric Excess
作者:Dagmar C. Kapeller、Friedrich Hammerschmidt
DOI:10.1021/ja0779708
日期:2008.2.1
Enantiopure stannyl-[D1]methanol was converted to chloro-[D1]methylstannane under complete inversion of configuration using Ph3P/N-chlorosuccinimide in THF. It was transmetalated to stereospecifically give chloro-[D1]methyllithium (ee up to 98%). Its microscopic configurationalstability was tested by performing tin-lithium exchange in the presence of benzaldehyde as the electrophile under various