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Chiral Recognition of Carboxylic Acids by Chiral Nitrogen Containing Calix[4]arene

✍ Scribed by Yan-Song Zheng; Qin Xiao

Publisher: John Wiley and Sons
Year: 2005
Tongue: English
Weight: 124 KB
Volume: 23
Category: Article
ISSN: 0256-7660
DOI: 10.1002/cjoc.200591289

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✦ Synopsis

Abstract

Chiral nitrogen‐containing calix[4]arene was easily synthesized by the reaction of 25,27‐di(2‐bromoethoxy)‐26,28‐dihydroxy‐5,11,17,23‐tetrakis(t‐butyl)calix[4]arene with S‐((−)‐1‐phenylethylamine in excellent yield, and showed good ability to recognize the enantiomers of mandelic acid and 2,3‐dibenzoyltartaric acid. This finding has potential application to assay and separation of enantiomers of the carboxylic acids.

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