The title ligand, 2,2′-methylenebis(4-chloro-3-methyl-6-(isopropyl)
phenol), was synthesized from the reaction of paraformaldehyde with
4-chloro-3-methyl-6-(isopropyl)phenol in heptane in the presence
of catalytic amounts of sulphuric acid following the general synthetic
method reported in the literature [7,9] (Scheme 1).