[EN] HYDROGEN PEROXIDE CATALYZED PROCESS FOR THE PREPARATION OF STERICALLY HINDERED N-HYDROCARBYLOXYAMINES [FR] PROCEDE DE CATALYSE DU PEROXYDE D'HYDROGENE POUR PREPARER DES N-HYDROCARBYLOXYAMINES STERIQUEMENT ENCOMBREES
Hydrogen peroxide catalyzed process for the preparation of sterically hindered N-hydrocarbyloxyamines
申请人:Galbo P. James
公开号:US20050014948A1
公开(公告)日:2005-01-20
Sterically hindered N-hydrocarbyloxyamines are prepared from hindered amine N-oxyl compounds by a process which uses hydrogen peroxide or a hydrogen peroxide equivalent, a catalytic amount of a peroxide decomposing transition metal salt, metal oxide, or metal-ligand complex, a hydrocarbon solvent containing no activated hydrogen atoms, and a relatively inert cosolvent. These compounds are useful as thermal and light stabilizers for a variety of organic substrates.