A kinetic study on the activating power of lithium ions on the porphyrin metallation by lanthanides and on a microwave specific effect

Abstract : A kinetic study of the lithium ion activating effect on porphyrin metallation has been investigated using monohydroxy-tritolyl porphyrin and the lanthanides erbium and gadolinium in dimethylacetamide. The powerful, concentration-dependent, catalytic effect of lithium, observed in both cases with classical heating was considerably enhanced under microwave irradiation at the same temperature thus underscoring a specific microwave effect.