Hair dye containing 2,6-dinitroaniline derivative and novel 2,6-dinitroaniline derivative

摘要

PCT No. PCT/EP88/00260 Sec. 371 Date Nov. 21, 1989 Sec. 102(e) Date Nov. 21, 1989 PCT Filed Mar. 29, 1988 PCT Pub. No. WO88/08696 PCT Pub. Date Nov. 17, 1988.The method of dyeing hair comprises applying to the hair a dye containing a 2,6-dinitro-aniline derivative having the general formula (I) IMAGE (I) wherein R represents H, C1-C4 alkyl, C2-C4 monohydroxy alkyl or C3-C4-dihydroxy alkyl and X represents one of the radicals C1-C4 alkyl, C2-C4 monohydroxy alkyl, C1-C4 perfluoro alkyl, C1-C4 alkoxy, C2-C4 monohydroxy alkoxy, C3-C4 dihydroxy alkoxy or halogen. The present invention also comprises hair dyes containing at least one compound having the formula (I) and novel 2,6-dinitro-aniline derivatives. The dyes having the formula (I) have good physiological properties and provide all the yellow shades required for dyeing from a bluish-tinged lemon-yellow via a pure yellow to red-orange.