Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 132, Issue 9, Pages 2864-+Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja909972d
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Funding
- Ministry of Education, Culture, Sports, Science and Technology (Japan)
- Grants-in-Aid for Scientific Research [22750105] Funding Source: KAKEN
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A condensation reaction between quaternary ammonium halide and sulfonate was first successfully applied to the synthesis of the chiral polymers. Reaction of bis(quaternary) ammonium halide) with disulfonate afforded a polymer containing ionic bonds in its main chain. The chiral ionic polymers were applied to the asymmetric benzylation of N-diphenylmethylidene glycine tert-butyl ester to prepare (S)-phenylalanine derivatives in high yield with a high level of enantioselectivity.
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