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Palladium Complexes Bearing Chiral bis(NHC) Chelating Ligands on a Spiro Scaffold: Synthesis, Characterization, and Their Application in the Oxidative Kinetic Resolution of Secondary Alcohols

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journal contribution
posted on 31.01.2020, 20:23 by Dao Zhang, Jueqin Yu
A series of chiral bis-N-heterocyclic carbene ligands H2[(S)-1ad]­X2 (X = Br, I) on a spiro scaffold and their palladium complexes (S)-2ad and (S)-3a,b were prepared and applied in the enantioselective oxidative kinetic resolution of secondary alcohols. The corresponding alcohols can be obtained in high yields with moderate to excellent ee values.