Method for the Preparation of N-Oxyl Hindered Amine Inhibitors

Method for the Preparation of N-Oxyl Hindered Amine Inhibitors

The present disclosure provides a composition and method for the preparation of N-oxyl hindered amine esters by contacting a compound of Formula (I), wherein R1 and R2 are independently an alkyl, with a compound of Formula (II), wherein R3 and R4 are independently an alkyl, and n is an integer from...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WILCZYNSKI ROBERT, JULIETTE JAMIE J, NGUYEN LAN T.P. HOANG, SATHIOSATHAM MUHUNTHAN
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:The present disclosure provides a composition and method for the preparation of N-oxyl hindered amine esters by contacting a compound of Formula (I), wherein R1 and R2 are independently an alkyl, with a compound of Formula (II), wherein R3 and R4 are independently an alkyl, and n is an integer from 3 to 10, in the presence of a catalyst and a solvent, wherein the catalyst comprises at least one of tin, lithium, zirconium, and hafnium.