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  • Title: Diphenylprolinol silyl ether as a catalyst in an enantioselective, catalytic michael reaction for the formation of alpha,alpha-disubstituted alpha-amino acid derivatives.
    Author: Hayashi Y, Obi K, Ohta Y, Okamura D, Ishikawa H.
    Journal: Chem Asian J; 2009 Feb 02; 4(2):246-9. PubMed ID: 19065594.
    Abstract:
    Direct and enantioselective: Diphenylprolinol silyl ether was found to catalyze the direct, asymmetric Michael reaction of 4-substituted 2-aryl-2-oxazoline-5-one and alpha,beta-unsaturated aldehydes, affording the chiral alpha,alpha-disubstituted alpha-amino acid derivatives with excellent enantioselectivity.
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