Covalent Functionalization of Nanodiamonds by Ruthenium Porphyrin and their Catalytic Activity in the Cyclopropanation Reaction of Olefins

Detonation nanodiamonds (DNDs) were functionalized by ruthenium porphyrins and used as catalyst in the cyclopropanation reaction of olefins. The heterogeneous catalyst was characterized by TEM, SEM and XPS. The XPS spectroscopy was used to control the binding of the ruthenium porphyrin to the DNDs surface. Such catalyst was used in the cyclopropanation reactions of simple olefins and reused with no loss of activity in four consecutive cycles after recovering each time by simple centrifugation.