ChemInform Abstract: Asymmetric Cyclopropanation of Olefins with Diazoacetate Using Chiral Copper Catalysts.
Abstract
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ChemInform Abstract
Chiral 2-(2-sulfonylamino)phenyl-oxazolines and especially the oxazoline shown in A) are found to be efficient ligands for Cu- catalyzed enantioselective cyclopropanation of olefins. The substitution pattern of the olefin as well as the nature of the ester group effect the stereochemical outcome.