Hans Schwarzkopf Gmbh

Wolfgang Schlenther

Mustafa Akram

Winfried Seidel

Thomas Oelschlager

New substituted 2,6-diaminotoluenes of the general formula I ##STR1## wherein R is a hydrogen atom and R.sup.1 is a radical of the formula Ia

Substituted 2,6-diaminotoluenes, processes for their preparation and

Compounds of formula I are disclosed: ##STR1## and their salts with inorganic and organic acids, wherein either X denotes H and Y denote OR or HNR, or X denotes OR or NHR and Y denotes H, and R represents hydroxy(C.sub.2 -C.sub.3) alkyl, 2,3-dihydroxypropyl, methoxy(c.sub.2 -C.sub.3) alkyl, tetrahydrofurylmethyl or tetrahydropyrylmethyl. Processes are described for the preparation of compounds of formula I as well as aqueous coloring agents for keratin fibers, such as fur and human hair, containing at least one compound of formula I as the coupler and at least one developing component, as well as customary additives and auxiliaries.

Substituted 1,3-diaminobenzenes, processes for their preparation and

The invention relates to new 3-nitro-4-aminophenols of the formula (I) ##STR1## in which R denotes hydrogen or halogen, preferably chlorine or bromine, and R' denotes hydrogen or alkyl, hydroxyalkyl, dihydroxyalkyl or halogenohydroxyalkyl which has 1 to 6 carbon atoms and is straight-chain or branched, with the proviso that, if R is hydrogen, R' does not denote hydrogen, methyl or .beta.-hydroxyethyl. Processes for their preparation: (a) by reacting corresponding 3-nitro-4-aminophenols with certain halogenoalkyl chloroformates and subsequent basic treatment of the process products, or (b) by reacting corresponding 4-halogeno-3-nitrophenols with certain amines, and the intermediate products obtained and coloring agents for keratinic fibres, preferably for human hair, which contain at least one compound of the formula (I).

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Hamburg, Germany

Wolfgang Schlenther