Preferential axial protonation in a zwitterionic calix[4]arene

Samah Simaan, Silvio E. Biali*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


(Chemical Equation Presented) Calixarene 3, substituted at two methylene bridges by dimethylamino groups, exists in the crystal and in polar solvents as a zwitterion, with the axial dimethylamino group protonated.

Original languageAmerican English
Pages (from-to)1817-1820
Number of pages4
JournalOrganic Letters
Issue number9
StatePublished - 28 Apr 2005


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