Synthesis of main-chain chiral quaternary ammonium polymers for asymmetric catalysis using quaternization polymerization

Main-chain chiral quaternary ammonium polymers were successfully synthesized by the quaternization polymerization of cinchonidine dimer with dihalides. The polymerization occurred smoothly under optimized conditions to give novel type of main-chain chiral quaternary ammonium polymers. The catalytic...

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Bibliographic Details
Published in:Molecules (Basel, Switzerland) Switzerland), 2012-06, Vol.17 (6), p.7569-7583
Main Authors: Haraguchi, Naoki, Ahamed, Parbhej, Parvez, Md Masud, Itsuno, Shinichi
Format: Article
Language:English
Subjects:
Catalysis
chiral polymer
Chromatography
cinchona alkaloid
Cinchona Alkaloids - chemical synthesis
organocatalysis
Polymerization
Polymers
Polymers - chemical synthesis
Quaternary Ammonium Compounds - chemical synthesis
Quaternary Ammonium Compounds - chemistry
quaternary ammonium salt
quaternization polymerization
Stereoisomerism
Sulfhydryl Compounds - chemical synthesis
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Summary:Main-chain chiral quaternary ammonium polymers were successfully synthesized by the quaternization polymerization of cinchonidine dimer with dihalides. The polymerization occurred smoothly under optimized conditions to give novel type of main-chain chiral quaternary ammonium polymers. The catalytic activity of the polymeric chiral organocatalysts was investigated on the asymmetric benzylation of N-(diphenylmethylidene)glycine tert-butyl ester.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules17067569