C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 307/83 (2006.01) C07C 15/27 (2006.01) C08K 5/1535 (2006.01) C09K 15/06 (2006.01)
Patent
CA 2554119
Most carbon-centered free radical antioxidants are generated through hydrogen abstraction. Disclosed herein are a new class of antioxidant precursor compounds of the formula A-B, wherein upon exposure of the compounds to an increase in temperature, the compounds undergo at least partial dissociation into free radicals Ao and Bo at least one of which may be functional as an antioxidant. Preferably, each of Ao and Bo is a carbon centered free radical.
La plupart des antioxydants à radicaux libres centrés sur le carbone sont générés par abstraction d'hydrogène. Une nouvelle classe de composés précurseurs antioxydants de formule A-B, qui après exposition à des températures s'accroissant, subissent une dissociation au moins partielle en radicaux libres A et B dont au moins un peut être fonctionnel comme antioxydant. Chaque A et chaque B est de préférence un radical libre centré sur le carbone.
Kirby Eades Gale Baker
University Of Ottawa
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