Electroorganic chemistry. 92. Facile preparation of nitrones by electrochemical oxidation of N-hydroxy secondary amines using halogen ions as mediators
A ‘waterproof’ catalyst for the oxidation of secondary amines to nitrones with alkyl hydroperoxides
作者:Massimiliano Forcato、William A. Nugent、Giulia Licini
DOI:10.1016/s0040-4039(02)02490-5
日期:2003.1
Catalytic oxidation of secondaryamines to nitrones using alkyl hydroperoxides as primary oxidant has been demonstrated for the first time. The titanium alkoxide catalyst is protected from co-product water by the combined use of a tightly binding trialkanolamine ligand and molecular sieves. Nitrones can be obtained in high yield (up to 98%) under homogeneous, anhydrous conditions and even in the absence