Polymer-Supported Cinchona Alkaloid-Derived Ammonium Salts as Recoverable Phase-Transfer Catalysts for the Asymmetric Synthesis of α-Amino Acids

Polymer-Supported Cinchona Alkaloid-Derived Ammonium Salts as Recoverable Phase-Transfer Catalysts for the Asymmetric Synthesis of α-Amino Acids

Alkaloids such as cinchonidine, quinine and N-methylephedrine have been N-alkylated using polymeric benzyl halides or co-polymerized and then N-alkylated, thus affording a series of polymer-supported chiral ammonium salts which have been employed as phase-transfer catalysts in the asymmetric benzyla...

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Bibliographic Details
Main Authors: Carmen Nájera, Patricia Mazón, Rafael Chinchilla
Format: Article
Language:English
Published: MDPI AG 2004-04-01
Series:Molecules
Subjects:
Amino acids
asymmetric synthesis
phase-transfer catalysis
chiral ammonium salts.
Online Access:http://www.mdpi.com/1420-3049/9/5/349/

Internet

http://www.mdpi.com/1420-3049/9/5/349/

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