| abstract |
The invention relates to a compound of formula: where R 1 has the formula: n n n where R 3 represents linear or branched C 1 -C₂₀ alkyl; R 2 is identical to R 1 or is halogen, alkoxy or mono- or dialkylamino linear or branched in C 1 -C₂₀ or corresponds to formulas (III) or (IV): where R 5 is linear or branched C 1 -C₂₀ alkyl and n = 0 or 1; R 4 denotes H, OH or C 1 -C 6 alkoxy; n n n Application of these compounds for the protection of the skin and the hair against ultraviolet radiation. |