N-Monosubstituted indoanilines

Abstract

New dyestuffs are described for keratinic fibers which produce particularly luminous shades without the need for an oxidizing agent. These dyestuffs have the formula: ##STR1## or a tautomeric form thereof wherein each of R.sub.1 and R.sub.4, which may be identical or different, represents a member selected from hydrogen, halogen, alkyl having 1 to 6 carbon atoms, alkoxy having 1 to 6 carbon atoms, acylamino and ureido; each of R.sub.2 and R.sub.3, which may be identical or different, represents a member selected from hydrogen, halogen, alkyl having 1 to 6 carbon atoms, alkoxy having 1 to 6 carbon atoms, amino, N-alkylamino, N-(hydroxyalkyl)-amino, N-(carbamyl-alkyl)-amino, acylamino and ureido, each of said alkyls containing 1 to 6 carbon atoms; each of R.sub.5 and R.sub.6, which may be identical or different, represents a member selected from hydrogen, halogen, alkyl containing 1 to 6 carbon atoms and alkoxy containing 1 to 6 carbon atoms, with the proviso that when R.sub.5 and R.sub.6 are both other than hydrogen at least one is in a meta-position relative to the NHR.sub.7 group; and R.sub.7 represents a member selected from alkyl, hydroxyalkyl, acylaminoalkyl, mesylaminoalkyl, carbamylalkyl, aminoalkyl, piperidinoalkyl and morpholinoalkyl, each of said alkyls containing 1 to 6 carbon atoms.

Dependencies are inferred from the claim text.