Reactions of a Highly Crowded Triorganotin Iodide with Silver Salts. Migration of a Methyl Group from Silicon to Tin within a Cation
作者:Ashrafolmolouk Asadi、Anthony G. Avent、Colin Eaborn、Michael S. Hill、Peter B. Hitchcock、Margaret M. Meehan、J. David Smith
DOI:10.1021/om011079z
日期:2002.5.1
formed apparently by an unprecedented 1,3-migration of a methylgroupfromsilicon to tin within a cation. Compound 5 and Ph3SiOSO2CF3 are the first silicon trifluoromethanesulfonates to be characterized by X-ray structure determinations. In both the Si−O bonds are long, ca. 1.75 Å, consistent with the ready nucleophilic displacement of [OSO2CF3]- fromsilicon centers. The crystal structures of the