[reaction: see text] gamma,delta-Unsaturated alpha-hydroxy diesters with quaternary centers have been obtained with up to 99% ee in high yields using catalysts prepared from copper(II) triflate and C(1)-symmetric aminosulfoximines.
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| http://dx.doi.org/10.1021/ol060077d | DOI Listing |
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text] gammadelta-unsaturated
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