Journal
ORGANIC LETTERS
Volume 23, Issue 6, Pages 2120-2124Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.1c00271
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Funding
- Japan Society for the Promotion of Science (JSPS) [17H06173, 20H02728, 20K05461]
- JST CREST [JPMJCR19R2]
- [17H05430]
- Grants-in-Aid for Scientific Research [20K05461, 20H02728] Funding Source: KAKEN
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In this study, a molecularly chiral [3]rotaxane was synthesized, separated enantiomers using chiral high-performance liquid chromatography, and the absolute configuration of each [3]rotaxane was revealed through density functional theory calculations.
In this study, we synthesized a molecularly chiral [3]rotaxane comprising a calix-bis-crown ether (as the macrocyclic component) and two unsymmetrical dialkylammonium salts (as dumbbell-shaped components) without any chirality in any of the individual components. Chiral high-performance liquid chromatography was used to separate the enantiomers, which were characterized by circular dichroism spectroscopy. Density functional theory calculations gave an insight into the absolute configuration of each [3]rotaxane.
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