| 摘要 |
The present describes compounds of formula I: wherein R1 is alkyl from 1 to 18 carbon atoms; cycloalkyl from 5 to 12 carbon atoms; alkenyl from 3 to 6 carbon atoms which is substituted with phenyl, OH, alkoxyl from 1 to 18 carbon atoms, cycloalkoxyl from 5 to 12 carbon atoms, alkenyloxyl from 3 to 18 carbon atoms, halogen, -COOH, -COOR4, -O-CO-R5, -O-CO-O-R6, -CO-NH2, -CO-NHR7, -CO-NHR7, -CO-N(R7)(R8), CN, NH2, NHR, -N(R7)(R8), -NH-CO-R5, phenoxyl , phenoxyl substituted with alkyl from 1 to 18 carbon atoms, phenyl-alkoxyl from 1 to 4 carbon atoms, bicycloalkoxyl from 6 to 15 carbon atoms, bicycloalkenylalkoxyl from 6 to 15 carbon atoms or tricycloalkoxyl from 6 to 15 carbon atoms, cycloalkyl from 5 to 12 carbon atoms which is substituted with OH, alkyl from 1 to 4 carbon atoms, alkenyl from 2 to 6 carbon atoms or -O-CO-R5; -CO-R9 or -SO2-R10; R1 is alkyl from 3 to 50 carbon atoms which is interrupted by one or more oxygen atoms and/or is substituted with OH, phenoxyl or alkylphenoxyl from 7 to 18 carbon atoms; or R1 has the meaning of specific polymerizable radicals indicated in claim 1; R2 is alkyl from 6 to 18 carbon atoms; alkenyl from 2 to 6 carbon atoms; COOR4; CN; NH-CO-R5; halogen; trifluoromethyl; -O-R3; R3 comprises definitions given for R1; radicals R11 independently from one another are H; alkyl from 1 to 18 carbon atoms; alkenyl from 3 to 6 carbon atoms; phenyl; phenylalkyl from 7 to 11 carbon atoms; halogen or alkoxyl from 1 to 18 carbon atoms; and radicals residue embraces definitions given in claim 1, at least one of radicals R1, R2 and R11 containing 4 or more carbon atoms. New compounds are efficient as stabilizers for organic material against light, oxygen and heat detrimental effect, they are also suitable to be employed in preparations for skin or hair protection.
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