Abstract
AbstractRepeated reaction between chiral quaternary ammonium halide dimer and disodium disulfonate gave the ionic polymer, which contains chiral quaternary ammonium sulfonate structure as a repeating unit. This chiral ionic polymer showed an excellent catalytic activity in asymmetric benzylation reaction. With the chiral ionic polymer catalysts, high level of enantioselectivities up to 97% ee were attained. For more details on this figure, please see pp 815∼821 in this issue.
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