Resolution and Diels−Alder Catalysis with Planar Chiral Arene-Tethered Ruthenium Complexes
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Planar chiral arene-tethered ruthenium complexes were applied to the Diels−Alder reaction of methacrolein and cyclopentadiene, with enantiomeric excesses up to 70%. The influence of a chiral phosphoramidite ligand on the catalytic selectivity was examined, along with counterion effects. The potential of asymmetric activation using the mixture of diastereomers formed from a racemic tethered complex and an enantiopure phosphine directly in the catalysis was investigated.
创建时间:
2016-05-05



