Synthesis of first-generation calix-dendrimer from 1,3,5-tris(aminomethyl)-2,4,6-trimethylbenzene and p-tert-butylcalix[4]arene monomethyl ester

A first-generation calix-dendrimer 1 suitable as a multidentate ligand for metal-ion binding was prepared from 1,3,5-tris(aminomethyl)-2,4,6-trimethylbenzene as the dendrimer core and p-tert-butylcalix [4] arene monomethyl ester as a repetitive branch, and characterized by spectroscopic techniques.