Patent ID: 7491245

Claim:
A keratin dyeing composition comprising: (A) a medium suitable for dyeing; and (B) one or more tricyclic fused 6-5-6 heteroaromatic keratin dyeing compounds having one heteroatom according to the following formula: wherein Y is independently selected from the group consisting of NA 1 and O; wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , and R 8 are the same or different and are selected from the group consisting of: (a) C-linked monovalent substituents selected from the group consisting of: (i) substituted or unsubstituted, straight or branched, alkyl, mono- or poly-unsaturated alkyl, heteroalkyl, aliphatic, heteroaliphatic, or heteroolefinic systems, (ii) substituted or unsubstituted, mono- or poly-cyclic aliphatic, aryl, or heterocyclic systems, and (iii) substituted or unsubstituted, mono-, poly-, or per-fluoro alkyl systems; wherein said systems of (i), (ii) and (iii) comprise from about 1 to about 10 carbon atoms and from about 0 to about 5 heteroatoms selected from the group consisting of O, S, N, P, and Si; (b) S-linked monovalent substituents selected from the group consisting of SA 1 , SO 2 A 1 , SO 3 A 1 , SSA 1 , SOA 1 , SO 2 NA 1 A 2 , SNA 1 A 2 , and SONA 1 A 2 ; (c) O-linked monovalent substituents selected from the group consisting of OA 1 , and ONA 1 A 2 ; (d) N-linked monovalent substituents selected from the group consisting of NA 1 A 2 , (NA 1 A 2 A 3 ) + , NA 1 OA 2 , NA 1 SA 2 , NO 2 , N═NA 1 , N═NOA 1 , NA 1 CN, and NA 1 NA 2 A 3 ; (e) monovalent substituents selected from the group consisting of COOA 1 , CONA 1 2 , CONA 1 COA 2 , C(═NA 1 )NA 1 A 2 , CN, and X; (f) fluoroalkyl monovalent substituents selected from the group consisting of mono-, poly-, and per-fluoro alkyl systems comprising from about 1 to about 12 carbon atoms and from about 0 to about 4 heteroatoms; and (g) hydrogen; wherein A 1 , A 2 , and A 3 are monovalent and are independently selected from the group consisting of: H; substituted or unsubstituted, straight or branched, alkyl, mono- or poly-unsaturated alkyl, heteroalkyl, aliphatic, heteroaliphatic, or heteroolefinic systems; substituted or unsubstituted, mono- or poly-cyclic aliphatic, aryl, or heterocyclic systems; and substituted or unsubstituted, mono-, poly-, per-fluoro alkyl systems or A 1 and A 2 together with nitrogen atom to which they are bound form a ring; wherein said systems comprise from about 1 to about 10 carbon atoms and from about 0 to about 5 heteroatoms selected from the group consisting of O, S, N, P, and Si, with the proviso that when R 1 , R 3 , R 6 , and R 8 are the same, R 1 , R 3 , R 6 , and R 8 are not NH 2 ; and wherein X is a halogen selected from the group consisting of F, Cl, Br, and I.