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Using ScCl3.6H2O as the metal salt instead of Sc(OTf)3 and no LiCl resulted in similar outcomes (65% yield, 95% ee). Thus, LiCl acts as a promoter for counterion exchange
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3 and no LiCl resulted in similar outcomes (65% yield, 95% ee). Thus, LiCl acts as a promoter for counterion exchange.
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78
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The absolute configuration of the recovered 1a was determined by comparing the circular-dichroism spectrum with that of 1i. CCDC 1013667 (3af) and CCDC 1013674 (1i) contain the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via
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The absolute configuration of the recovered 1a was determined by comparing the circular-dichroism spectrum with that of 1i. CCDC 1013667 (3af) and CCDC 1013674 (1i) contain the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data-request/cif.
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