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A Stimuli‐Responsive Rotaxane–Gold Catalyst: Regulation of Activity and Diastereoselectivity
Authors:Marzia Galli  Dr James E M Lewis  Dr Stephen M Goldup
Institution:School of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ (UK)
Abstract:A rotaxane‐based Au catalyst was developed and the effect of the mechanical bond on its behavior was studied. Unlike the non‐interlocked thread, the rotaxane requires a catalytically innocent cofactor, the identity of which significantly influences both the yield and diastereoselectivity of the reaction. Under optimized conditions, AuI (the catalyst), AgI (to abstract the Cl? ligand), and CuI (the cofactor) combine to produce a catalyst with excellent activity and selectivity.
Keywords:catalysts  gold  molecular machines  rotaxanes  supramolecular chemistry
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