2-(2-hydroxyphenyl)-benzotriazole derivatives

Details 2-(2-hydroxyphenyl)-benzotriazole derivatives 2-(2-hydroxyphenyl)-benzotriazole derivatives

C - Chemistry, Metallurgy

07

D

400/7081, 31/79,

C07D 249/20 (2006.01) C09D 7/12 (2006.01) C09K 15/30 (2006.01) G03C 7/392 (2006.01)

Patent

CA 1338713

Benzotriazoles of the formula I Image I in which R1 and R are located in the ortho-position and para-position relative to the OH group and at least one of these substituents is an .alpha.- branched alkyl group containing a polar group M in the .omega.-position are liquid or low-melting compounds which absorb UV light and can be used as stabilizers for organic materials. M can be, for example, an ester, amide, hydroxyl, ether, amine, phosphonate, cyano, nitro or keto group. R3 can be H, Cl, alkyl, alkoxy or a carboxyl group.

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