HYDROGEN PEROXIDE CATALYZED PROCESS FOR THE PREPARATION OF STERICALLY HINDERED N-HYDROCARBYLOXYAMINES
Sterically hindered N-hydrocarbyloxyamines (I) are prepared from hindered amine N-oxyl compounds (II) by a process which uses 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 co...
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Zusammenfassung: | Sterically hindered N-hydrocarbyloxyamines (I) are prepared from hindered amine N-oxyl compounds (II) by a process which uses 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 an inert cosolvent, These compounds are useful as thermal and light stabilizers for a variety of organic substrates.
Las N-hidrocarbiloxiaminas estericamente impedidas se preparan de compuestos N-oxilo de aminas impedidas por un proceso que utiliza peroxido de hidrogeno o un equivalente de peroxido de hidrogeno, una cantidad catalitica de una sal de metal de transicion, oxido metalico, o complejo de metal-ligante que descompone peroxido, un disolvente hidrocarburo que contiene atomos de hidrogeno no activados, y un codisolvente inerte. Estos compuestos son utiles como estabilizadores termicos y de la luz para una variedad de substratos organicos. |
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