Ortho-phthalaldehyde-functionalized ultravioletabsorbers and visible chromophores for semi-permanent topical applications

A compound of formula A, selected from the group consisting of formulae A1 or A2,

• wherein Ar1 is an ultraviolet absorbing moiety of formula B, formula C, formula D, or formula E,
• wherein Ar2 and Ar3 are independently of each other a moiety of formula F, selected from the group consisting of formulae F1 or F2,
• wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, and R25 are independently selected from the group consisting of hydrogen, linear or branched C1-C24 alkyl, linear or branched C2-C24 alkenyl, linear or branched C2-C24 alkynyl, substituted or unsubstituted C5-C24 cycloalkyl, substituted or unsubstituted C6-C24 aryl, substituted or unsubstituted C7-C25 arylalkyl, halogen, CHO, C(═O)R, C(═O)OR, C(═O)OM, CN, OR, NRR′, NO2, SR, S(═O)2R, S(═O)2OR, or S(═O)2OM wherein M is an alkali metal, and R and R′ are independently selected from the group consisting of hydrogen, linear or branched C1-C24 alkyl, substituted or unsubstituted C6-C24 aryl, substituted or unsubstituted C7-C25 arylalkyl, or R2 and R3, together with the carbon atoms to which they are bonded, or R4 and R5, together with the carbon atoms to which they are bonded, or R5 and R6, together with the carbon atoms to which they are bonded, or R7 and R8, together with the carbon atoms to which they are bonded, or R8 and R9, together with the carbon atoms to which they are bonded, or R9 and R10, together with the carbon atoms to which they are bonded, or R11 and R12, together with the carbon atoms to which they are bonded, or R12 and R13, together with the carbon atoms to which they are bonded, or R13 and R14, together with the carbon atoms to which they are bonded, or R15 and R16, together with the carbon atoms to which they are bonded, or R17 and R18, together with the carbon atoms to which they are bonded, or R18 and R19, together with the carbon atoms to which they are bonded, or R19 and R20, together with the carbon atoms to which they are bonded, or R20 and R21, together with the carbon atoms to which they are bonded, or R22 and R23, together with the carbon atoms to which they are bonded, or R23 and R24, together with the carbon atoms to which they are bonded, or R24 and R25, together with the carbon atoms to which they are bonded, form a saturated or unsaturated, substituted or unsubstituted 5- to 19-membered carbocyclic ring that optionally contains 1- to 7-heteroatom substitutions selected from O, N, or S as ring member(s), wherein at least one of Ar2 and Ar3 is a moiety of formula F2, unless R1, R2, or R4 is OH, wherein at least one of R1, R2, or R4 is OH when Ar1 is a moiety of formula C, wherein at least one of R1, R2, R4, or R11 is OH when Ar1 is a moiety of formula D.