The Preparation and Some Properties of 3-Substituted 2,4-Pentanedionato Metal(II, III) Complexes

In the substitution reactions of phenol, benzenethiol, and their sodium salts on the chelate ring of 3-bromo-2,4-pentanedionato metal complexes (metal=iron(III), aluminium(III), and beryllium(II)), benzenethiol was found to be substituted for bromine, while phenol was not substituted under the same conditions. In the case of sodium salts, both sodium phenoxide and benzenethiolate gave substituted products. The UV and PMR data of tris(3-substituted 2,4-pentanedionato)aluminium(III) complexes gave some information on the substituted groups.