BENZYLIDENE COMPOUNDS COMPRISING PHOSPHONO-GROUPS

摘要

Disclosed is the use of the compounds of formula (1) wherein R1 and R2 independently of one another are hydrogen; unsubstituted or substituted C1- C12 alkyl; unsubstituted or substituted C3 -C12 cycloalkyl; unsubstituted or substituted C6- C20 aryl; or unsubstituted or substituted C2-C20 alkenyl; R3 is PO3 R1 R2; COOR6; COR7; CONR7 R8; -SO2 R6; CN; unsubstituted or substituted C6- C20 aryl; R4 is unsubstituted C6- C20 aryl; or C6- C20 aryl which is substituted by at least one C1- C18 alkyl, C1- C18 alkoxy, C3- C12 cycloalkyl, hydroxy, amino, mono-or di-C1- C18 alkylamino, -NR10 COR11 or the radical of formula (1a) or unsubstituted or substituted C4 -C20 heteroaryl; R5 is hydrogen; substituted or unsubstituted C1 -C20 alkyl; unsubstituted or substituted C3 - C12 cycloalkyl; unsubstituted or substituted C6 -C20 aryl; or unsubstituted or substituted C4- C20 heteroaryl; or R4 and R5 form a cycloaliphatic ring; R6, R7 and R8 independently from each other are hydrogen; C1- C18 alkylor C3-C12 cycloalkyl, which may be substituted by one or more E and/or interrupted by one or more D; or C6- C20 aryl, which may be substituted by G; or R7 and R8 together form a five or six membered ring; D is -CO-; -COO-; -S-; -SO-; -SO2 -; -O-; -NR9 -; -SiR12 R13 -; -POR14 -; -CR15 =CR16 -; or -C=C-; E is -OR17; -SR17; -NR10 R11; -NR10 COR11; -COR11; -COOR 11; -CONR10 R11; -CN; halogen; SO3 R18; SO2 R18; PO3 (R18 )2; or PO2 (R18 )2; G is E; C1-C18 alkyl, which is optionally interrupted by D; C1-C18 perfluoroalkyl; C1 -C18 alkoxy, which is optionally substituted by E and/or interrupted by D; wherein R9, R10 and R11, independently of each other are hydrogen; C6 -C18 aryl which is optionally substituted by C1-C18 alkyl or C1-C18 alkoxy; C1-C18 alkyl, which is optionally interrupted by -O-;or R10 and R11 together form a five or six membered ring; R12 and R13 independently of each other are hydrogen; C1- C18 alkyl; or C6-C18 aryl which is optionally substituted by C1-C18 alkyl; R14 is C1-C18 alkyl; or C6-C18 aryl, which is optionally substituted by C1-C18 alkyl; R15 and R16 independently of each other are hydrogen; C6-C18 aryl which is optionally substituted by C1- C18 alkylor C1-C18 alkoxy; or C1-C18 alkyl which is optionally interrupted by -O-; R17 is H; C6-C18 aryl which is optionally substituted by C1- C18 alkyl or C1-C18 alkoxy; or C1- C18 alkyl which is optionally interrupted by -O-; and R18 is hydrogen; C6-C18 aryl, which is optionally substituted by C1-C18 alkyl or C1- C18 alkoxy; or C1 -C18 alkyl, which is optionally interrupted by -O-; for the protecting of human and animal hair and skin from UV radiation. The UV filters of the present invention represent oil-soluble substances which advantageously absorb in the UV-A and UV-B region.