C1-symmetric oxazolinyl sulfoximines as ligands in copper-catalyzed asymmetric mukaiyama aldol reactions.
2008
Aryl-bridged C1-symmetric oxazolinyl sulfoximines are applicable in copper-catalyzed asymmetric Mukaiyama aldol reactions with methyl pyruvate. The resulting α-hydroxy esters have been obtained with up to 94% ee in good yields. They contain a quaternary stereogenic center and represent valuable precursors for biologically active molecules.
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