名称:
Synthesis, crystal structure and catalytic activities of [RuIII(bbpc)(PPh3)Cl][H2bbpc = 1,2-bis(4-tert-butylpyridine-2-carboxamido)-4,5-dichlorobenzene]
摘要:
The compound H(2)bbpc [1,2-bis(4-tert-butylpyridine-2-carboxamido)-4,5-dichlorobenzene], which has good solubility in organic solvents, has been prepared. Reaction of [Ru(PPh(3))(3)Cl-2] with H(2)bbpc in ethanol and in the presence of triethylamine gave [Ru-II(bbpc)(PPh(3))Cl], the crystal structure of which has been determined. This complex is an active catalyst for alkene epoxidation by PhlO, cyclopropanation of styrene by ethyl diazoacetate and aziridination of styrene by PhlNO(2)SC(6)H(4)Me-p. Its cyclic voltammogram in dichloromethane showed a reversible Ru-III-Ru-II couple at -0.55 V and an oxidation couple at 0.32 V.