Stabilisation of oils, fats and vitamin compsns. - with antioxidant (1,4)-dihydro-pyridine derivs

Stabilisation of oils, fats and vitamin compsns. - with antioxidant (1,4)-dihydro-pyridine derivs

Vegetable oils, animal fats and oil-soluble vitamin compsns. are stabilised against oxidative degradation by adding >=0.02(pref. 0.02-1)wt. % of a 1,4-dihydropyridine deriv. of formula (I): In the formula, R1 is Me, Ph, 1-12C alkoxy, PhO, benzyloxy, 1-phenylpropylenoxy or cyclohexyloxy, and R2 is...

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1. Verfasser: SOLOMON ARONOVICH GILLER, GUNAR YANOVICH DUBUR, GUNAR DZHIMOVICH TIRZITIS, YANIS RIKHARDOVICH ULDRIKIS, ERNEST IVANOVICH KOZLOV, RAISA ALEXANDROVNA IVANOVA, VIKTOR ANDREEVICH YAKOVLEV, NIKITA ALEXEEVICH BOGOSLOVSKY ET ZHANNA ISAAKOVNA ABRAMOVA
Format: Patent
Sprache:eng ; fre
Schlagworte:
ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES
CANDLES
CHEMISTRY
DETERGENTS
ESSENTIAL OILS
FATTY ACIDS THEREFROM
METALLURGY
PERFUMES
PRODUCING (PRESSING, EXTRACTION), REFINING AND PRESERVINGFATS, FATTY SUBSTANCES (e.g. LANOLIN), FATTY OILS AND WAXES,INCLUDING EXTRACTION FROM WASTE MATERIALS
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Zusammenfassung:Vegetable oils, animal fats and oil-soluble vitamin compsns. are stabilised against oxidative degradation by adding >=0.02(pref. 0.02-1)wt. % of a 1,4-dihydropyridine deriv. of formula (I): In the formula, R1 is Me, Ph, 1-12C alkoxy, PhO, benzyloxy, 1-phenylpropylenoxy or cyclohexyloxy, and R2 is Me, or R1+R2 is 1,1-dimethylpropylene; R3 is H or carboxylpropyl. (I) can be used to stabilise, e.g. A and D in the form of oil solns. or solid compsns. contg. a dry filler. Some (I) are more effective than butylated hydroxytoluene (BHT) and have very low toxicity, e.g. (I; R1 = EtO, R2 = Me, R3 = H) has an LD50 of >32g/kg (p.o., mouse).