Effective Oxidation of Secondary Amines to Nitrones with Alkyl Hydroperoxides Catalysed by (Trialkanolaminato)titanium(IV) Complexes
作者:Massimiliano Forcato、Miriam Mba、William A. Nugent、Giulia Licini
DOI:10.1002/ejoc.200900867
日期:2010.2
The effective catalytic oxidation of secondaryamines to nitrones with alkyl hydroperoxides as the primary oxidants is described. The titanium alkoxide catalysts are protected from the water co-product by the combined use of a tightly binding trialkanolamine ligand and molecular sieves. Nitrones can be obtained in high yields (up to 98 %) under homogeneous, anhydrous conditions and even in the absence