Highly stereoselective epoxidation with H2O2 catalyzed by electron-rich aminopyridine manganese catalysts.
Fast, efficient, and highly stereoselective epoxidation with H2O2 is reached by manganese coordination complexes with e-rich aminopyridine tetradentate ligands. It is shown that the electronic properties of these catalysts vary systematically with the stereoselectivity of the O-atom transfer event and exert fine control over the activation of hydrogen peroxide, reducing the amount of carboxylic acid co-catalyst necessary for efficient operation.
Institut de Quimica Computacional i Catàlisi (IQCC), and Departament de Química, Universitat de Girona, Campus de Montilivi , E-17071 Girona, Catalonia, Spain.
Olaf
O
Cussó
Isaac
I
Garcia-Bosch
David
D
Font
Xavi
X
Ribas
Julio
J
Lloret-Fillol
Miquel
M
Costas
D000631:Aminopyridines / Q000737:chemistry*; D002384:Catalysis; D018360:Crystallography, X-Ray; D004583:Electrons; D004852:Epoxy Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D006861:Hydrogen Peroxide / Q000737:chemistry*; D008345:Manganese / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D013237:Stereoisomerism
D000631:Aminopyridines; D004852:Epoxy Compounds; D009942:Organometallic Compounds; D008345:Manganese; D006861:Hydrogen Peroxide