A highly efficient method of epoxidation of olefins with hydrogen peroxide catalyzed by changeable hexadentate 8-quinolinolato manganese(III) complexes

作者：Zhong, Sheng; Tan, Yueming; Fu, Zaihui^*; Me, Qingji; Xie, Fang; Zhou, Xiaoping; Ye, Zhengpei; Peng, Guosheng; Yin, Dulin

来源：Journal of Catalysis, 2008, 256(1): 154-158.

DOI：10.1016/j.jcat.2008.02.023

• catalysis
• epoxidation
• hexadentate structure
• hydrogen peroxide
• olefins
• 8-quinolinolato Mn(III) complexes

Novel hexadentate binding 8-quinolinolato manganese(III) complexes were proposed and conveniently synthesized for the epoxidation of olefins with aqueous hydrogen peroxide in water-acetone media with ammonium acetate and acetic acid as additives. The catalytic efficiencies of the suggested catalysts were found to be obviously superior to the traditional tetradentate salen-(MnCl)-Cl-III, due to their special hexadentate binding structures that could be easily converted to the corresponding pentadentate with pendant hydroxyl groups by opening an axial Mn-O bond in the reaction media, as supported by UV-vis spectra, in situ cyclic voltammetry, and quartz crystal microbalance characterizations.

• 出版日期2008-5-15
• 单位湖南师范大学