Thioimidazolidine derivatives

C - Chemistry – Metallurgy – 07 – D

Patent

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C07D 233/42 (2006.01) C07D 403/12 (2006.01) C07D 403/14 (2006.01) C07D 405/12 (2006.01) C07D 405/14 (2006.01) C08K 5/3445 (2006.01) C08K 5/378 (2006.01) G03C 1/34 (2006.01)

Patent

CA 2399183

A compound of the formula (I) wherein G1, G2, G3 and G4 are independently of one another C1-C18alkyl or C5-C12cycloalkyl or the radicals G1 and G2 and the radicals G3 and G4 form independently of one another, together with the carbon atom they are attached to, C5-C12cycloalkyl; R is hydrogen, C1-C18alkyl, oxyl, -OH, -CH2CN, C3-C6alkenyl, C3-C8alkynyl, C7-C12phenylalkyl unsubstituted or substituted on the phenyl radical by C1-C4alkyl and/or C1-C4alkoxy; C1-C8acyl, C1-C18alkoxy, C1-C18hydroxyalkoxy, C2-C18alkenyloxy, C5-C12cycloalkoxy, C7- C12phenylalkoxy unsubstituted or substituted on the phenyl radical by C1- C4alkyl and/or C1-C4alkoxy; C1-C18alkanoyloxy, (C1-C18alkoxy)carbonyl, glycidyl or a group -CH2CH(OH)(G) with G being hydrogen, methyl or phenyl; n is 1, 2, 3 or 4; and X is an organic radical of a valency equal to n; and when n is 2, 3 or 4, each of the radicals G1, G2, G3, G4 and R can have the same or a different meaning in the units of the formula (II), is useful for stabilizing an organic material against degradation induced by light, heat or oxidation.

L'invention concerne un composé de formule (I) dans laquelle G¿1?, G¿2?, G¿3? et G¿4? représentent de manière indépendante l'un des groupes C¿1?-C¿18?alkyle ou C¿5?-C¿12?cycloalkyle ou les radicaux G¿1? et G¿2? et les radicaux G¿3? et G¿4? forment de manière indépendante, avec l'atome de carbone auquel ils sont attachés, l'un des groupes C¿5?-C¿12?cycloalkyle; R représente l'hydrogène, C¿1?-C¿18?alkyle, oxyle, -OH, -CH¿2?CN, C¿3?-C¿6?alcényle, C¿3?-C¿8?alkynyle, C¿7?-C¿12?phénylalkyle non substitué ou substitué sur le radical phényl par C¿1?-C¿4?alkyle et/ou C¿1?-C¿4?alcoxy; C¿1?-C¿8?acyle, C¿1?-C¿18?alcoxy, C¿1?-C¿18?hydroxyalcoxy, C¿2?-C¿18?alcényloxy, C¿5?-C¿12?cycloalcoxy, C¿7?-C¿12?phénylalcoxy non substitué ou substitué sur le radical phényl par C¿1?-C¿4?alkyle et/ou C¿1?-C¿4?alcoxy; C¿1?-C¿18?alkanoyloxy, (C¿1?-C¿18?alcoxy)carbonyle, glycidyle ou un groupe -CH¿2?CH(OH)(G), G représentant un atome d'hydrogène, le groupe méthyle ou le phényl; n est égal à 1, 2, 3 or 4; et X est un radical organique d'une valence égale à n; et lorsque n est égal à 2, 3 ou 4, chaque radical G¿1?, G¿2?, G¿3?, G¿4? et R peut avoir la même signification ou une signification différente dans les unités de formule (II). Ce composé est utile pour la stabilisation de matière organique contre la dégradation induite par la lumière, la chaleur ou l'oxydation.

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