Synthesis and spectroscopic studies of isosteviol-calix[4]arene and -calix[6]arene conjugates |
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| Authors: | Mayya Korochkina Alessandro Casnati Arturo Arduini Rocco Ungaro Vladimir Kataev Vladimir Alfonsov |
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| Institution: | a A.E. Arbuzov Institute of Organic and Physical Chemistry, Arbuzov str. 8, Kazan 420088, Russian Federation
b Dipartimento di Chimica Organica ed Industriale dell'Università, Parco Area delle Scienze 17/A, I-43100 Parma, Italy |
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| Abstract: | Novel calix4]arene derivatives functionalized with two or four isosteviol units at the upper rim and a new calix6]arene having six isosteviol moieties at the lower rim have been synthesized. The structures of these compounds have been confirmed by NMR and mass spectrometry data. All 1H and 13C NMR chemical shifts of isosteviol were fully assigned by extensive NMR spectroscopic methods, and used to clarify the structures and conformations of isosteviol-calixarene conjugates. |
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| Keywords: | Calixarenes Isosteviol NMR spectroscopy Molecular modelling Ab initio calculations |
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