Boronic ester of a phthalocyanine precursor with a salicylaldimino moiety

► 4-(3-Hydroxy-4-(((2-hydroxyphenyl)imino)methyl)phenoxy)phthalonitrile was prepared. ► Its benzeneboronic ester with high stability in air was isolated. ► The novel phthalonitriles were characterized by IR, UV-vis, mass and NMR spectra.