1, 3-Migration of a phenyl group in the conversion of (Me 3 Si) 2 (PhMe 2 Si) CSiMePhX into (Me 3 Si) 2 (Ph 2 MeSi) CSiMe 2 Y species

C Eaborn, A Kowalewska, W Stanczyk

文献索引：Eaborn, Colin; Kowalewska, Anna; Stanczyk, Wlodzimierz Journal of Organometallic Chemistry, 1998 , vol. 560, # 1-2 p. 41 - 46

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摘要

The finding that compounds of the type (Me3Si) 2 (PhMe2Si) CSiMePhX react with electrophiles to give very predominantly rearranged products (Me3Si) 2 (Ph2MeSi) CSiMe2Y, which would be expected to be thermodynamically disfavoured, can be rationalized in terms of a mechanism in which the anchimerically-assisted departure of X− gives the Ph-bridged cation [(Me3Si) 2CSiMe 2 (μ-Ph) Si MePh]+ which is attacked by the ...