| abstract |
The subject of the present invention is compounds of the following formulas (I) and (II), as well as their synthetic processes: R7 representing a group chosen from the groups of formulas (a) and (b): R8 represents the following group of formula (c): n n n It also relates to dye compositions comprising said compounds, as cationic direct dyes, as well as to dyeing processes for keratinous fibers, in particular human fibers using these compositions. |