Compositions for oxidatively dyeing keratin fibers and methods for using such compositions

A composition for dyeing keratin fibers, said composition comprising:

• (a) at least one keratin dyeing compound selected from aromatic systems which comprise at least one boronic acid or boronic ester moiety and which are capable of forming upon oxidation a nucleophile or an electrophile;
• (b) at least one additional keratin dyeing compound selected from the group consisting of auxiliary developers and auxiliary couplers;
• and
• (c) a cosmetically suitable medium
• wherein said aromatic systems which comprise at least one boronic acid or boronic ester moiety and which are capable of forming upon oxidation a nucleophile or an electrophile are selected from a compound according to one of the following formulas I to XV:
• wherein R1, R2, R3, R4, R7, R8, R9, R10, R11, R12, and R13 each are independently 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-hydroxy or -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 SA1,
• (c) O-linked monovalent substituents selected from the group consisting of OA1;
• (d) N-linked monovalent substituents selected from the group consisting of NA1A2;
• (e) a halogen selected from the group consisting of F, Cl, Br, and I;
• (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;
• and
• wherein R is selected group consisting of hydrogen, COR1, and said C-linked monovalent substituents of (a);
• wherein R5 and R6 each are independently selected from the group consisting of hydrogen and lower alkyl groups which can be joined together as a straight or branched alkylene chain forming a five or six-membered ring or an aromatic ring;
• wherein X is selected from the group consisting of hydroxyl, B(OR5)OR6, and NA1A2;
• wherein Y and Z each are independently selected from the group consisting of hydroxyl and B(OR5)OR6, provided that at least one of which is B(OR5)OR6;
• and
• wherein A1 and A2 are monovalent and are independently selected from the group consisting of hydrogen;
• 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 A1 and A2 together with a nitrogen atom to which they are bound form a ring;
• wherein all of 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.