| abstract |
A compound of formula (I), wherein R, R 1 , R 2 are each independently hydrogen, linear or branched C 1 -C 10 alkyl, or linear or branched C 1 a -C 10 alkoxy, R 3 is COCH 3, CO 2 R 7, CONH 2, CON (R 8) 2, CN, COX (CH 2) n-N- (R 4) (R 5) (R 6 And a quaternary salt form of the formula COX (CH 2 ) nāNā (R 4 ) (R 5 ) (R 6 ) + Y ā , X is O or NH; n is an integer of 1 to 5, Y is an anion, R 4 , R 5 and R 6 are independently linear or branched C 1 to C 30 alkyl, and R 7 and R 8 are independently Or hydrogen or linear or branched C 1 -C 30 alkyl. Sunscreen formulations comprising a compound of formula (I) and methods for protecting hair, skin, and substrates such as polymers, fibers, fabrics, leathers, paints, etc. with the compounds of the present invention. |