developed a cobalt-mediated reaction to regenerate C60 from N-substituted C60 derivatives (aziridinofullerene and azafulleroid). In these reactions, we found the formation of a green monovalent-cobalt complex of C60, and its structure was unambiguously determined by X-ray analysis. The characteristic electronic structure of this cobaltcomplex was studied by IR and UV–vis absorption spectroscopy and electrochemical
Oxidation of [60]fullerene by cytochrome P450 chemical models
作者:Takeshi Hamano、Tadahiko Mashino、Masaaki Hirobe
DOI:10.1039/c39950001537
日期:——
Reaction of [60]fullerene in cytochrome P450 (P450) chemical model systems gives several oxidation products; sequential epoxidation occurs, and the second and third oxygen atoms are each introduced at a double bond adjacent to an existing epoxide.
Fullerene epoxides react with benzaldehyde derivatives in the presence of a pyridinium hexafluoroantimonate to give corresponding 1,3-dioxolane derivatives of [60]fullerene in excellent yields. The activation energy for the reaction of fullerene monoepoxide with benzaldehyde was determined to be 112.7 kJ mol−1. This result shows that fullerene epoxides undergo the stepwise SN1-like acetalization reaction.