Primary intermediates for oxidative coloration of hair

   
   

Primary intermediates for hair coloring compositions for oxidative dyeing of hair are compounds of the formula (1): ##STR1## where R.sub.1 and R.sub.2 are each individually selected from a hydrogen atom, a C.sub.1 to C.sub.3 alkyl group, a C.sub.1 to C.sub.5 mono or dihydroxyalkyl group; phenyl or benzyl optionally substituted with an alkoxy group, or R.sub.1 and R.sub.2 together with the nitrogen atom to which they are attached form a piperazine, piperidine, imidazole, or morpholine ring.

Los intermedios primarios para las composiciones del colorante del pelo para teñir oxidative del pelo son compuestos del fórmula (1): ## del ## STR1 donde están cada uno seleccionado individualmente de un átomo del hidrógeno, C.sub.1 al grupo alkyl C.sub.3, C.sub.1 a C.sub.5 mono o grupo R.sub.1 y R.sub.2 del dihydroxyalkyl; fenilo o benzyl substituida opcionalmente con un grupo alkoxy, o R.sub.1 y R.sub.2 junto con el átomo del nitrógeno a el cual son forma unida al piperazine, piperidine, imidazole, o anillo del morpholine.

 
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