Novel synthesis of N-substituted-calix[4]azacrown derivatives

Abstract

A novel series of calix[4]azacrown derivatives with the reaction between calix[4]azacrown and the different fluorophore derivatives, which may be useful fluorescent receptors, have been synthesized and structurally characterized by IR, 1H NMR, 13C NMR and MS. From their analysis data, it was found those compounds adopted a cone conformation.