Oxidation of secondary amines to nitrones using urea-hydrogen peroxide complex (UHP) and metal catalysts

Article abstract of DOI:10.1016/0040-4039(95)00558-T

Secondary amines can be readily oxidized to the corresponding nitrones using urea-hydrogen peroxide complex (UHP) and metal catalysts in methanol at room temperature. Sodium tungstate is the most effective catalyst in several runs and common protecting groups are tolerated in these conditions.