The elusive β-unsubstituted calix[5]pyrrole finally captured

Organic Letters

Volumn 4, Issue 16, 2002, Pages 2695-2697

  Cafeo, Grazia ^a   Kohnke, Franz H ^a   Parisi, Melchiorre F ^a   Nascone, Rosetta Pistone ^a   La Torre, Giovanna L ^a   Williams, David J ^b  

^a UNIVERSITY OF MESSINA   (Italy)

^b IMPERIAL COLLEGE LONDON   (United Kingdom)

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EID: 0038765081     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol0262082     Document Type: Article

References (21)

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2. Gale, P. A.; Sessler, J. L.; Král, V.; Lynch, V. M. J. Am. Chem. Soc. 1996, 118, 5140. Gale, P. A.; Sessler, J. L.; Král, V. Chem. Commun. 1998, 1.
3. Turner, B.; Botoshansky, M.; Eichen, Y. Angew. Chem., Int. Ed. 1998, 37, 2475. For examples of related heterocalixarenes, see also: Jang, Y. S.; Kim, H. J.; Lee, P. H.; Lee, C. H. Tetrahedron Lett. 2000, 41, 2919. Arumugam, N.; Jang, Y. S.; Lee, C. H. Org. Lett. 2000, 2, 3115.
4. Turner, B.; Botoshansky, M.; Eichen, Y. Angew. Chem., Int. Ed. 1998, 37, 2475. For examples of related heterocalixarenes, see also: Jang, Y. S.; Kim, H. J.; Lee, P. H.; Lee, C. H. Tetrahedron Lett. 2000, 41, 2919. Arumugam, N.; Jang, Y. S.; Lee, C. H. Org. Lett. 2000, 2, 3115.
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14. +.
15. o|), 2θ ≤ 120°] and 382 parameters. CCDC 168706.
16. 2 (vide infra).
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21. 1H NMR time-scale even at -80°C.