Use of substituted dihydroisoquinolinium salts for treating keratin materials, compositions and implementation processes

A method for improving the oxidizing activity of at least one chemical oxidizing agent, the method comprising combining at least one chemical oxidizing agent with a compound chosen from:

• (a) compounds of formula (I), the addition salts thereof, or the solvates thereof:
• wherein in formula (I):
• R is chosen from:
• a linear or branched C1-C12 alkyl radical optionally substituted with at least one group, which may be identical or different, chosen from hydroxyl, C1-C6 alkoxy, cyano, or amino —NR10R11 groups;
• R1 is chosen from:
• a linear or branched C1-C12 alkyl radical optionally substituted with at least one group, which may be identical or different, chosen from hydroxyl, C1-C6 alkoxy, or amino —NR10R11 groups;
• R2, R3, R4, R5, R6, R7, R8 and R9, are chosen from, independently of each other, a radical chosen from:
• a hydrogen atom,
• a halogen atom,
• a linear or branched C1-C6 alkyl radical optionally substituted with at least one group, which may be identical or different, chosen from hydroxyl, C1-C6 alkoxy, or amino —NR10R11 groups,
• a C1-C6 alkoxy radical,
• a hydroxyl radical,
• an amino radical —NR10R11, or
• an aminocarbonyl radical —CONH2;
• R10 and R11, which may be identical or different, are chosen from a hydrogen atom or a linear or branched C1-C6 alkyl radical;
• with the proviso that R, R2, R3, R4 and R5 cannot all be identical;
• and
• An− represents an organic or mineral anion or mixture of anions which ensures the electrical neutrality of the compounds of formula (I);
• or
• (b) 2,3,3-trimethyl-3,4-dihydroisoquinolinium toluene-4-sulfonate (Compound 2):

A composition comprising:

• at least one chemical oxidizing agent, and
• at least one compound;
• wherein the at least one compound is chosen from:
• (a) compounds of formula (I), the addition salts thereof, or the solvates thereof:
• wherein in formula (I):
• R is chosen from:
• a linear or branched C1-C12 alkyl radical optionally substituted with at least one group, which may be identical or different, chosen from hydroxyl, C1-C6 alkoxy, cyano, or amino —NR10R11 groups;
• R1 is chosen from:
• a linear or branched C1-C12 alkyl radical optionally substituted with at least one group, which may be identical or different, chosen from hydroxyl, C1-C6 alkoxy, or amino —NR10R11 groups;
• R2, R3, R4, R5, R6, R7, R8 and R9, are chosen from, independently of each other, a radical chosen from:
• a hydrogen atom,
• a halogen atom,
• a linear or branched C1-C6 alkyl radical optionally substituted with at least one group, which may be identical or different, chosen from hydroxyl, C1-C6 alkoxy, or amino —NR10R11 groups,
• a C1-C6 alkoxy radical,
• a hydroxyl radical,
• an amino radical —NR10R11, or
• an aminocarbonyl radical —CONH2;
• R10 and R11, which may be identical or different, are chosen from a hydrogen atom or a linear or branched C1-C6 alkyl radical;
• with the proviso that R, R2, R3, R4 and R5 cannot all be identical;
• and
• An− represents an organic or mineral anion or mixture of anions which ensures the electrical neutrality of the compounds of formula (I);
• or
• (b) 2,3,3-trimethyl-3,4-dihydroisoquinolinium toluene-4-sulfonate (Compound 2):

A compound chosen from:

• (a) compounds of formula (II), the addition salts thereof, or the solvates thereof:
• wherein in formula (II):
• R is chosen from:
• a linear or branched C1-C12 alkyl radical optionally substituted with at least one group, which may be identical or different, chosen from hydroxyl, C1-C6 alkoxy, cyano, or amino —NR10R11 groups;
• R1 is chosen from:
• a linear or branched C1-C12 alkyl radical optionally substituted with at least one group, which may be identical or different, chosen from hydroxyl, C1-C6 alkoxy, cyano, or amino —NR10R11 groups;
• R2, R3, R4, R5, R6, R7, R8 and R9 are chosen from, independently of each other, a radical chosen from:
• a hydrogen atom,
• a halogen atom,
• a linear or branched C1-C6 alkyl radical optionally substituted with at least one group, which may be identical or different, chosen from hydroxyl, C1-C6 alkoxy, or amino —NR10R11 groups, or
• an aminocarbonyl radical —CONH2;
• R10 and R11, which may be identical or different, are chosen from a hydrogen atom or a linear or branched C1-C6 alkyl radical;
• with the proviso that R, R2, R3, R4 and R5 cannot all be identical;
• and
• An− represents an organic or mineral anion or mixture of anions which ensures the electrical neutrality of the compounds of formula (II);
• or
• (b) 2,3,3-trimethyl-3,4-dihydroisoquinolinium toluene-4-sulfonate (Compound 2):
• wherein the compound is not chosen from the following compounds: