Composition comprising at least one 2-pyrrolidone functionalized with an ester or amide radical, and at least one pigment or direct dye, for dyeing keratin materials

A composition comprising, in a suitable cosmetic medium:

• i) at least one 2-pyrrolidinone functionalized in position 4 with an ester or amide, chosen from compounds of formula (I):
• and the organic or mineral acid or base salts thereof, optical isomers thereof, stereoisomers or enantiomers and diastereoisomers, geometrical isomers and tautomers thereof, and solvates and hydrates thereof;
• wherein in formula (I):
• X is chosen from oxygen and divalent amino groups —N(R5)—;
• wherein R5 is chosen from hydrogen, linear or branched (C1-C30) alkyl groups optionally substituted with at least one group chosen from —OH, —SH, —NH2, tri(C1-C6)alkylammoniums, and cationic heteroaryl groups;
• R1 and R2, which may be identical or different, are chosen from:
• a) optionally substituted hydrocarbon-based chains, wherein the hydrocarbon-based chain is a saturated linear C1-C30 or branched C3-C30 or cyclic C3-C7 chain;
• and wherein the hydrocarbon-based chain is optionally interrupted with:
• i) at least one heteroatom chosen from —O—, —N(R6)— or —S—;
• ii) at least one group chosen from —S(O)—, —S(O)2—, —C(O)—, and —N+(R6)(R7)—;
• a combination of i) and ii);
• and/or
• iii) a 3- to 6-membered saturated or unsaturated carbon-based ring optionally substituted with one or more identical or different radicals chosen from hydroxyl (OH) and amino (—NRR′);
• b) divalent chains -Cycl-Alk-Cycl′-wherein:
• Cycl and Cycl′, which may be identical or different, are chosen from cyclic hydrocarbon-based chains, and
• Alk is chosen from substituted or unsubstituted (C1-C6) alkylene chains;
• c) optionally substituted hydrocarbon-based chains, wherein the hydrocarbon-based chain is a saturated linear C2-C30 or branched C3-C30 or cyclic C3-C7 chain;
• and wherein the hydrocarbon-based chain is optionally interrupted with:
• i) at least one heteroatom chosen from —O—, —N(R6)— or —S—;
• ii) at least one group chosen from —S(O)—, —S(O)2—, —C(O)—, and -N+(R6)(R7)—;
• a combination of i) and ii);
• and/or
• iii) a 3- to 6-membered saturated or unsaturated carbon-based ring optionally substituted with one or more identical or different radicals chosen from hydroxyl (OH) and amino (—NRR′);
• R1 and/or R2 substituted with at least one radical chosen from those of formulas (E) and (F):
• wherein in formulas (E) and (F):
• X′ is chosen from oxygen —O— and —N(R5) groups;
• R′1 and R′2, which may be identical or different, are as defined for R1 and R2, but cannot be substituted with the radicals (E) or (F):
• represents the point of attachment of the radicals (E) and (F) to the rest of the molecule;
• A1 and A2, which may be identical or different, are chosen from:
• hydrogen, and groups chosen from a) —OH;
• b) —SH;
• c) —NRR′;
• d) —O—P(O)(OH)2;
• e) —O—S(O)2OH;
• f) —S(O)2OH;
• g) —C(O)OH;
• h) saturated or unsaturated 3- to 6-membered (hetero)cycles optionally substituted with at least one identical or different radical chosen from (hydroxy)(C1-C6) alkyl, hydroxyl and —NRR′, the (hetero)cycles possibly being cationic;
• i) —N+(R7)(R8)(R9);
• j) RR′N—C(═NR″)—N(R)— and
• and
• k) radicals of formula (G) or (H):
• wherein in formulas (G) and (H):
• X″ is chosen from oxygen —O— and —N(R5) groups;
• R″1 and R″2, which may be identical or different, are as defined for R′1 and R′2;
• wherein A1 and A2 do not simultaneously represent a radical (G) or (H);
• R3, R4, R′3, R′4, R″3 and R″4, which may be identical or different, are chosen from hydrogen and linear C1-C12 or branched C3-C12 alkyl chains;
• R6 is chosen from hydrogen and linear (C1-C20) alkyl or branched (C3-C20) alkyl groups, optionally substituted with a radical (G) or (H);
• R7, R8 and R9, which may be identical or different, are chosen from hydrogen and (C1-C6) alkyl groups optionally substituted with at least one hydroxyl group;
• and
• R, R′ and R″, which may be identical or different, are chosen from hydrogen atom and (C1-C18) alkyl groups optionally substituted with at least one hydroxyl group;
• wherein when A1, A2, R1, R2, and/or R5 contain or denote a cationic group, the electrical neutrality of the compounds of formula (I) is ensured by an anionic counterion or a mixture of anionic counterions;
• and
• wherein when X is oxygen, R3, R4, A1 and A2 do not simultaneously represent a hydrogen atom;
• and
• ii) at least one colorant chosen from pigments, wherein the at least one colorant is sparingly soluble or insoluble in standard aqueous-alcoholic supports.