Aromatic allylaminonitro compounds, hair dye compositions containing aromatic allylaminonitio compounds, and synthetic and natural fiber dyeing process

The process of dyeing synthetic fibers or fibers of natural origin comprising contacting said fibers with a composition containig 0.01 to 5% by weight of aromatic allylaminonitro compounds corresponding to formula (I):

• ##STR4## in which R.sup.1 is hydrogen or an alkyl group containing 1 to 4 carbon atoms, R.sup.2 is hydrogen, an alkyl group containing 1 to 4 carbon atoms or an allyl group CH.sub.2 C(R.sup.5)=CH.sub.2, where R.sup.5 is hydrogen or an alkyl group containing 1 to 4 carbon atoms, R.sup.3 is carboxyl, hydroxy, nitro, halogen or a group NR.sup.6 R.sup.7, where R.sup.6 and R.sup.7 independently of one another represent hydrogen, an alkyl group containing 1 to 4 carbon atoms, a hydroxyalkyl or dihydroxyalkyl group containing 2 to 4 carbon atoms or an allyl group CH.sub.2 C(R.sup.8)=CH.sub.2, where R.sup.8 is hydrogen or an alkyl group containing 1 to 4 carbon atoms, and R.sup.4 is hydrogen or nitro, with the proviso that R.sup.3 and R.sup.4 are not both nitro, and when the NO.sub.2 group is in the para position to the allylamino group N(R.sup.2)CH.sub.2 C(R.sup.1)=CH.sub.2, R.sup.3 is hydroxy and R.sup.4 is hydrogen, and when the NO.sub.2 group is in the ortho position to the allylamino group N(R.sup.2)CH.sub.2 C(R.sup.1)=CH.sub.2, R.sup.3 represents NR.sup.6 R.sup.7 and is in the para position to the allylamino group N(R.sup.2)CH.sub.2 C(R.sup.1)=CH.sub.2, and R.sup.4 is hydrogen, and at least one component selected from the group consisting of wetting agents, emulsifiers, thickeners, perfume oils, water-soluble cationic polymers, water-soluble ampholytic polymers, water-soluble anionic polymers, protein derivatives, pantothenic acid, and cholesterol.

A hair dye composition containing 0.01 to 5% by weight of aromatic allylaminonitro compounds corresponding to formula (I):

• ##STR5## in which R.sup.1 is hydrogen or an alkyl group containing 1 to 4 carbon atoms, R.sup.2 is hydrogen, an alkyl group containing 1 to 4 carbon atoms or an allyl group CH.sub.2 C(R.sup.5)=CH.sub.2, where R.sup.6 is hydrogen or an alkyl group containing 1 to 4 carbon atoms, R.sup.3 is carboxyl, hydroxy, nitro. halogen or a group NR.sup.6 R.sup.7, where R.sup.6 and R.sup.7 independently of one another represent hydrogen, an alkyl group containing 1 to 4 carbon atoms, a hydroxyalkyl or dihydroxyalkyl group containing 2 to 4 carbon atoms or an allyl group CH.sub.2 C(R.sup.8)=CH.sub.2, where R.sup.8 is hydrogen or an alkyl group containing 1 to 4 carbon atoms, and R.sup.4 is hydrogen or nitro, with the proviso that R.sup.3 and R.sup.4 are not both nitro, and when the NO.sub.2 group is the para position to the allylamino group N(R.sup.2)CH.sub.2 C(R.sup.1)=CH.sub.2, R.sup.3 is hydroxy and R.sup.4 is hydrogen, and when the NO.sub.2 group is in the ortho position to the allylamino group N(R.sup.2)CH.sub.2 C(R.sup.1)=CH.sub.2, R.sup.3 represents NR.sup.6 R.sup.7 and is in the para position to the allylamino group N(R.sup.2)CH.sub.2 C(R.sup.1)=CH.sub.2, and R.sup.4 is hydrogen, based on the weight of said hair dye composition, and at least one component selected from the group consisting of wetting agents, emulsifiers, thickeners, perfume oils, water-soluble cationic polymers, water-soluble ampholytic polymers, water-soluble anionic polymers, protein derivatives, panthenic acid, and cholesterol.