Enantioselective recognition of 1,2-amino alcohols by reversible formation of imines with resonance-assisted hydrogen bonds |
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Authors: | Kim Kwan Mook Park Hyunjung Kim Hae-Jo Chin Jik Nam Wonwoo |
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Affiliation: | Department of Chemistry, Division of Nano Sciences, and Center for Biomimetic Systems, Ewha Womans University, Seoul 120-750, South Korea. kkmook@ewha.ac.kr |
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Abstract: | A chiral aldehyde with three H-bond donating groups (2) has been synthesized. This aldehyde binds a variety of chiral 1,2-amino alcohols in benzene with the same sense of stereoselectivity. Computational and experimental data indicate that one imine bond, one resonance-assisted H-bond to the imine nitrogen, and two H-bonds to the alcoholic oxygen all play an important role in the stereoselective recognition. [structure: see text] |
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