Patent ID: 7338536

Claim:
A compound, wherein the compound is an N-alkylamino secondary para-phenylenediamine of formula (I): wherein: radicals R 1 and R 2 , which may be identical or different, are each chosen from a hydrogen atom, alkyl groups, monoalkylaminocarbonyl groups and dialkylaminocarbonyl groups, or the radicals R 1 and R 2 form, together with the nitrogen on which they are substituent, a saturated 5- or 6-membered ring optionally interrupted with at least one entity chosen from a nitrogen atom and a carbonyl functional group, and optionally substituted with at least one alkyl group, radical R is a linear or branched C 1 -C 10 alkylene radical, optionally interrupted with at least one atom chosen from nitrogen and oxygen atoms, and optionally substituted with at least one group chosen from amino, monoalkylamino, dialkylamino, alkylcarbonyl, amido, monoalkylaminocarbonyl and dialkylamino-carbonyl groups, with the proviso that, when R is a linear or branched C 1 -C 10 alkylene radical that is unsubstituted and not interrupted with at least one atom chosen from nitrogen and oxygen, then the radicals R 1 and R 2 are not chosen from one of the following couples: two hydrogen atoms; two alkyl groups; and a hydrogen atom and an alkyl group, and with the proviso that the compound is not 4-[4-(piperidinyl)butylamino]aminobenzene, N-[3-(4-methylpiperazin-1-yl)propyl]benzene-1,4-diamine, or 4-[2-(piperidinyl)ethylamino]-aminobenzene.