Ortho-tert-butylcalixarenes 3, 4 and 5 with exo-hydroxy groups were synthesised by tin tetrachloride-promoted condensation of 2,2'-dihydroxy-3,3'-di-tert-butyldiphenylmethane 6 with formaldehyde. While 1H NMR analysis of compounds 3, 4 and 5 revealed a considerable annular flexibility in CDCl3 solution, their X-ray single crystal analysis showed the presence of a strong intramolecular hydrogen bonds between the proximal OH groups.

Sartori, G., Porta, C., Bigi, F., Maggi, R., Peri, F., Marzi, E., et al. (1997). Calixarenes with Exo-Hydroxy Groups: Synthesis, Crystal and Molecular Sructure of ortho-tert-Buthyphenol-based Calix[4]-, Calix[6]- and Calix[8]arenes. TETRAHEDRON, 53(9), 3287-3300.

Calixarenes with Exo-Hydroxy Groups: Synthesis, Crystal and Molecular Sructure of ortho-tert-Buthyphenol-based Calix[4]-, Calix[6]- and Calix[8]arenes

PERI, FRANCESCO;
1997

Abstract

Ortho-tert-butylcalixarenes 3, 4 and 5 with exo-hydroxy groups were synthesised by tin tetrachloride-promoted condensation of 2,2'-dihydroxy-3,3'-di-tert-butyldiphenylmethane 6 with formaldehyde. While 1H NMR analysis of compounds 3, 4 and 5 revealed a considerable annular flexibility in CDCl3 solution, their X-ray single crystal analysis showed the presence of a strong intramolecular hydrogen bonds between the proximal OH groups.
Articolo in rivista - Articolo scientifico
Scientifica
calixarene; synthetic chemistry
Italian
Sartori, G., Porta, C., Bigi, F., Maggi, R., Peri, F., Marzi, E., et al. (1997). Calixarenes with Exo-Hydroxy Groups: Synthesis, Crystal and Molecular Sructure of ortho-tert-Buthyphenol-based Calix[4]-, Calix[6]- and Calix[8]arenes. TETRAHEDRON, 53(9), 3287-3300.
Sartori, G; Porta, C; Bigi, F; Maggi, R; Peri, F; Marzi, E; Lanfranchi, M; Pellinghelli, M
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/34246
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