| 摘要 |
PCT No. PCT/FR97/01521 Sec. 371 Date Feb. 26, 1999 Sec. 102(e) Date Feb. 26, 1999 PCT Filed Aug. 22, 1997 PCT Pub. No. WO98/08486 PCT Pub. Date Mar. 5, 1998The present invention relates to a composition and dyeing process for the dyeing of keratinous fibers using the composition, where the composition has as coupler, at least one compound of formula: where R1 denotes in particular hydrogen, halogen; alkoxy, aryloxy; acyloxy; arylthio; alkylthio; an NRIIIRIV radical with RIII and RIV, which are identical or different, representing a C1-C4 alkyl, and the like; R2 denotes hydrogen; halogen; acyl; sulphonyl; sulphinyl; phosphonyl; carbamoyl; sulphamoyl; cyano; siloxy; amino; acylamino; acyloxy; carbamoyloxy; sulphonamido; imido; ureido; sulphamoylamino; alkoxycarbonylamino; aryloxycarbonylamino; alkoxycarbonyl; aryloxycarbonyl; carboxyl; alkyl; or aryl; or a 5- or 6-membered heterocycle having at least one nitrogen, oxygen or sulphur atom; when R2 denotes an alkyl radical, an aryl radical or a 5- or 6-membered heterocycle, it can be connected to the carbon atom of the nucleus via an oxygen, a nitrogen or sulphur atom; and at least one oxidation base. |
