Syntheses of Chiral Calix [4] arene Derivatives Bearing Amino Acid Residue
✍ Scribed by Wen-Chun Zhang; Yan-Song Zheng; Wen-Guang Wang; Qi-Yu Zheng; Zhi-Tang Huang
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 502 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0256-7660
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✦ Synopsis
Abstract
The syntheses of chiral calix[4]arene derivatives bearing amino acid residue at the lower rim or upper rim by three different methods were reported.
📜 SIMILAR VOLUMES
## Abstract The __p‐tetra__‐te__r__t‐butyl calix[4] arene derivatives (3 and 4) with (5,5) chiral bicyclic guanidinium, as the receptors of amino acid zwitterions, have been synthesized __via__ a O‐alkylation reaction of __p‐tetra__‐tert‐butyl calix [4] arene with cbJoromethyl chiral bicyclic guani
## 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 mandeli
## Abstract By the reaction of para‐formylcalix[4]arenes **1–6** with trialkyl phosphites in the presence of dry hydrogen chloride, calix[4]arenes **7–13** possessing dialkylphosphoryl‐hydroxymethyl groupings at the upper rim were synthesized. Calix[4]arenes **18–23** functionalized with dialkylpho