Nucleophile-assisted racemisation of halosilanes; an alternative pathway involving halide exchange

AR Bassindale, JCY Lau, PG Taylor

Index: Bassindale, Alan R.; Lau, Juliana C.-Y.; Taylor, Peter G. Journal of Organometallic Chemistry, 1988 , vol. 341, p. 213 - 224

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Citation Number: 30

Abstract

Abstract An NMR method using diastereotopic halosilanes, PhCH (Me) SiMe 2 X (X= Cl or Br) has been developed for studying nucleophile-assisted racemisations of halosilanes. A mechanism for racemisation involving halide exchange is proposed to account for the observation that, at low temperatures, the halosilane is undergoing inversion of configuration while the four-coordinate nucleophile-halosilane adduct is stereochemically ...