Compositions for treating keratinic fibers, methods of treating such fibers therewith and compounds contained therein

A method comprising:

• (a) providing at least one component selected from the group consisting of salt compounds of general formula I, enamine counterparts of salt compounds of general formula I, and mixtures thereof:
• wherein each Me represents a methyl group, R represents a substituent selected from the group consisting of an allyl group, a hydroxy-(C2-6)-alkyl group, a benzyl group, and substituted benzyl groups, and X− represents a physiologically compatible anion;
• (b) providing at least one aldehyde selected from the group consisting of 4 hydroxy-3-methoxybenzaldehyde, 3,5-dimethoxy-4-hydroxybenzaldehyde, 4-hydroxy-1-naphthaldehyde, 4-hydroxy-2-methoxybenzaldehyde, 3,4-dihydroxy-5-methoxybenzaldehyde, 3,4,5-trihydroxybenzaldehyde, 3,5-dibromo-4-hydroxybenzaldehyde, 4-hydroxy-3-nitrobenzaldehyde, 3-bromo-4-hydroxybenzaldehyde, 4-hydroxy-3-methylbenzaldehyde, 3,5-dimethyl-4-hydroxybenzaldehyde, 5-bromo-4-hydroxy-3-methoxybenzaldehyde, 4-diethyl-amino-2-hydroxybenzaldehyde, 4-dimethylamino-2-methoxybenzaldehyde, and mixtures thereof;
• (c) contacting a keratinic fiber with the at least one component and the at least one aldehyde;
• and
• (d) removing the at least one component and the at least one aldehyde from the keratinic fiber.