Enhancement of Selectivity for Tandem Reactions through Adjusting Micro-environment of Metal Complex

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  Ruthenium(Ⅱ)N-heterocyclic carbene(NHC)complexes bearing pentamethylcyclopentadienyl ligands(Cp*)have been proven to be highly efficient in racemization of chiral alcohols.1 During our investigation of the catalytic performance of a cymene ruthenium NHC complex,2 we found that it was highly active for racemization of optically pure alcohols.
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