Kinetic Study of Alcohol-Catalyzed Substitution of tris(Dibenzoylmethanato) Fe(III) Ligands by Acetylacetone
Reaction Kinetics and Catalysis Letters
, E-ISSN: 1588-2837
Institute of Catalysis, Novosibirsk 630090, USSR
It is shown that substitution of the CH3 group by phenyl group in the β-diketonato ring does not change the general mechanism of the exchange reaction. The reaction rate fall observed may be due either to a greater stability of tris(di-benzoylmethanato) Fe(III) (Fe(dbm) compared to tris(benzoylacetonato) Fe(III) (Fe(ba)3) or to a decrease in the stability of the Fe(dbm)3·ROH complex, which is a precursor of the rate-determining step, in comparison with Fe(ba)3·ROH.