The origin of the configurational instability of 1-silyl-1-alkenyllithiums and related alkenylmetals

E Negishi, T Takahashi

Index: Negishi,E.; Takahashi,T. Journal of the American Chemical Society, 1986 , vol. 108, p. 3402

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Citation Number: 46

Abstract

Abstract: The origin of the remarkably facile configurational isomerization of 1-silyl-1- metalloalkenes was investigated by using 1-(trimethylsily1)-I-lithio-I-octene (5) as a representative example. Of seven mechanisms considered, those involving disproportionation via metal-metal exchange (mechanism I), addition-elimination (mechanism 11), simple ionization of the Li-C bond (mechanism 111), and polarization of ...