David Tetard

Alkane hydroxylation reactions catalysed by binuclear manganese and iron complexes

Abstract Binuclear manganese( III IV ) or iron( III III ) complexes efficiently functionalize cyclohexane using hydroperoxides or peracids as oxidants. A mechanistic study clearly demonstrate the role of dioxygen gas in these hydroxylation reactions. Moreover, it was demonstrated that the cleavage of the peroxy bond occurred mainly by homolysis.

Synthesis of di-µ-oxo manganese(III/IV) complexes as functional models of L. Plantarum pseudo-catalase: influence of electronic and steric factors; catalysis and kinetics of hydrogen peroxide disproportionation

Di-µ-oxo dimanganese(III/IV) complexes are efficient catalysts for H2O2 disproportionation in neutral aqueous medium; the activity can be correlated to the electron density on the metal and the accessibility of the catalytic site.

Alkane hydroxylation by a manganese analogue of the iron core from methane monooxygenase

A binuclear manganese (II/II) complex with a µ-hydroxo bridging ligand catalyses the hydroxylation of cyclohexane in the presence of tart-butyl hydroperoxide (TBHP).

Macrocyclic Ethers by Free Radical Cyclizations

Abstract Tin hydride reduction of ω-iodo-polyoxaalkyl acrylates 1 using syringe pump addition of both reactants to a solution of AIBN in benzene at 80°C afforded the corresponding cyclic polyethers in excellent yields.