Abstract

A ternary catalyst system of Cp*RuCl(cod)–2-diphenylphosphinoethylamine–KO t-Bu (Cp*=η 5-C 5(CH 3) 5, cod=1,5-cyclooctadiene) causes rapid racemization of chiral non-racemic sec-alcohols, which results from the reversible hydrogen transfer between sec-alcohols and ketones. Both tertiary phosphine and primary amine functionalities in the ligand are responsible for the high rate.

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