Palladium(II) complexes bearing a salicylaldiminato ligand with a hydroxyl group: Synthesis, structures, deprotonation, and catalysis

► Palladium complexes with a salicylaldiminato ligand bearing a hydroxyl group were synthesized. ► The structures of these complexes were confirmed by X-ray crystallography. ► A reversible deprotonation/protonation of the hydroxyl moiety was observed. ► The deprotonation affected its catalytic behaviour considerably.