| abstract |
The invention relates to a preparation with light protection properties, comprising at least one compound of the formula I. wherein R 1 and R 2 are selected from H and OR 11 , wherein OR 11 independently of one another stands for OH, straight-chain or branched C 1 to C 20 alkyloxy groups, straight-chain or branched C 3 to C 20 alkenyloxy groups, straight-chain or branched C 1 to C 20 hydroxyalkoxy groups, where the hydroxy group (s) can be bound to primary or secondary carbon atoms of the chain and the alkyl chain can also be interrupted by oxygen, and / or C 3 to C 10 cycloalkyloxy groups and / or C 3 - to C 12 -cycloalkenyloxy groups, where the rings can also be bridged by (CH 2 ) n groups with n = 1 to 3, and / or mono- and / or oligoglycosyl radicals, with the proviso that at least a radical from R 1 and R 2 stands for OR 11 and R 3 stands for a radical OR 11 and R 4 to R 7 and R 10 can be the same or different and independently of one another stand for radicals largely inert with regard to the UV properties. |