HYDROXYBENZOPHENONE DERIVATIVES

摘要

Disclosed are hydroxyphenylbenzophenone derivatives of formula (1), wherein R₁ and R₂ independently from each other are hydrogen; C₁-C₂₀alkenyl; C₃- C₁₀cycloalkyl; or R₁ and R₂ together with the linking nitrogen atom form a 5- 6-membered heterocyclic ring; R₃, R₄ and R₅ independently from each other are C₁-C₄alkyl; C₁-C₄alkoxy; or a radical of formula (1a) R₆ is C₁-C₆alkyl; and A is a straight-chain or branched C₃-C₆alkylene, which is optionally interrupted by one or more *-O-*, or *-O-(CO)-* groups; and m is 0; or anumber from 1 to 5. The compounds are useful as cosmetic UV filters with outstanding solubility properties in cosmetic oils.