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Sugar-based novel chiral macrocycles for inclusion applications and chiral recognition
Ankita Singh1, Vinod Khatri1, Shashwat Malhotra1
1Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India.
Carbohydrate Research
|January 18, 2016
Summary
Researchers synthesized sugar-based chiral macrocycles. These macrocycles show selective binding to primary ammonium salts and differentiate between D- and L-amino acid derivatives.
Area of Science:
- Supramolecular Chemistry
- Organic Synthesis
- Chiral Recognition
Background:
- Chiral macrocycles are crucial in molecular recognition and host-guest chemistry.
- Developing efficient synthetic routes for complex chiral macrocycles remains a challenge.
Purpose of the Study:
- To achieve a convergent template-assisted synthesis of novel sugar-based chiral macrocycles.
- To investigate the host-guest binding properties of the synthesized macrocycles.
- To evaluate the chiral discrimination capabilities of the macrocycles.
Main Methods:
- Convergent template-assisted synthesis approach.
- Host-guest inclusion studies using various ammonium salts.
- Chiral recognition studies using (1)H NMR spectroscopy with D- and L-phenylalanine methyl ester hydrochlorides.
Main Results:
- Successful synthesis of sugar-based chiral macrocycles.
- Demonstrated preferential binding of the macrocycles to primary ammonium salts over secondary ones.
- Observed distinct chiral discrimination between D- and L-phenylalanine methyl ester enantiomers.
Conclusions:
- The developed synthetic strategy provides access to valuable sugar-based chiral macrocycles.
- The synthesized macrocycles exhibit selective guest binding based on structural features (primary vs. secondary ammonium).
- The macrocycles show enantioselective recognition capabilities, highlighting their potential in chiral sensing and separation.
Keywords:
Benzyl ammonium perchlorateChiral recognitionClick reactionMacrocyclePhenylalanineTemplate assistedMore Related Videos
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