Novel calix[4]arene derivatives functionalized with two or four isosteviol units at the upper rim and a new calix[6]arene having six isosteviol moieties at the lower run have been synthesized. The structures of these compounds have been confirmed by NMR and mass spectrometry data. All H-1 and C-13 NMR chemical shifts of isosteviol were fully assigned by extensive NMR spectroscopic methods, and used to clarify the structures and conformations of isosteviol-calixarene, conjuates.
Synthesis and Spectroscopic Studies of Isosteviol-Calix[4]arene and -Calix[6]arene Conjugates / M., Korochkina; Fontanella, Marco; Casnati, Alessandro; Arduini, Arturo; Sansone, Francesco; Ungaro, Rocco; S., Latypov; V., Kataev; V., Alfonsov. - In: TETRAHEDRON. - ISSN 0040-4020. - 61:(2005), pp. 5457-5463. [10.1016/j.tet.2005.03.127]
Synthesis and Spectroscopic Studies of Isosteviol-Calix[4]arene and -Calix[6]arene Conjugates
FONTANELLA, Marco;CASNATI, Alessandro;ARDUINI, Arturo;SANSONE, Francesco;UNGARO, Rocco;
2005-01-01
Abstract
Novel calix[4]arene derivatives functionalized with two or four isosteviol units at the upper rim and a new calix[6]arene having six isosteviol moieties at the lower run have been synthesized. The structures of these compounds have been confirmed by NMR and mass spectrometry data. All H-1 and C-13 NMR chemical shifts of isosteviol were fully assigned by extensive NMR spectroscopic methods, and used to clarify the structures and conformations of isosteviol-calixarene, conjuates.| File | Dimensione | Formato | |
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