The Elusive β-Unsubstituted Calix[5]pyrrole Finally Captured
Autor: | Grazia Cafeo, Parisi Mf, David J. Williams, Kohnke Fh, La Torre Gl, Pistone Nascone R |
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Rok vydání: | 2002 |
Předmět: | |
Zdroj: | Organic Letters. 4:2695-2697 |
ISSN: | 1523-7052 1523-7060 |
Popis: | [reaction: see text] The meso-decamethyl-calix[5]pyrrole 2b was synthesized from the furan-based analogue 1b via the homologation of the furan rings to pyrrole, and its solid-state structure was determined by X-ray crystallography: surprisingly, the binding constant of 2b toward chloride is found to be lower than that of the tetrameric analogue 2a. |
Databáze: | OpenAIRE |
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