A biomimetic tris-imidazole/Mn(II) system for homogeneous catalytic epoxidation of olefins with H2O2

作者：Stamatis Ag; Vartzouma Ch; Louloudi M^*

来源：Catalysis Communications, 2011, 12(6): 475-479.

DOI：10.1016/j.catcom.2010.10.021

• Catalytic epoxidation
• Manganese complexes
• Hydrogen peroxide activation
• Additive

A biomimetic tris-imidazole ligand, herein called L-3imid, has been synthesized. The complexes formed by its association with Mn(II) have been evaluated for catalytic alkene epoxidation with H2O2. The catalytic efficiency of Mn(II)/L-3imid system was shown to be switched on by ammonium acetate, with remarkable effectiveness and selectivity towards epoxides. The incorporation of the biomimetic ligand L-3imid which combines structural features as Schiff base imine-groups and imidazole rings is considered to be related with the enhanced catalytic activity of the Mn(II)/L-3imid system.

• 出版日期2011-2-10