Synthesis and properties of a series of novel calix[6]arene diazo derivatives

Abstract

In this study, seven new compounds p-(4-butyl-phenylazo)calix[6]arene (1), p-(4-(phenylazo)phenylazo)calix[6]arene (2), p-(4-hydroxyphenylazo)calix[6] arene (3), p-{4-[N-(thiazol-2-yl)sulfamoyl]phenylazo}calix[6]arene (4), p-(4-acetamidophenylazo)calix[6]arene (5), p-(thiazol-2-ylazo)calix[6]arene (6) and p-(2-sulfanylphenylazo)calix[6]arene (7) have been synthesized from calix[6]arene by diazo coupling with the corresponding aromatic amines. UV-Vis, IR, 1H and 13C NMR spectral data have been used to elucidate the structures of the compounds elemental analyses.