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
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