Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
69029 | Journal of Molecular Catalysis A: Chemical | 2006 | 4 Pages |
Abstract
A series of phosphite–oxazoline ligands was tested in the Rh-catalyzed hydrosilylation of ketones. Systematic variation of the electronic and steric properties at the biphenyl phosphite moiety and at the oxazoline moiety provide useful information about the ligand parameters that control the enantiodiscrimination. The results show that the enantiomeric excesses are dependent on the properties on both the phosphite and oxazoline moieties of the ligand and on steric and electronic properties of the substrate. Low-to-moderate enantiomeric excesses (up to 62%) were obtained in the hydrosilylation of several aryl ketones.
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Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Oscar Pàmies, Carmen Claver, Montserrat Diéguez,