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.

Os intermediários preliminares para composições da coloração do cabelo para tingir-se oxidative do cabelo são compostos da fórmula (1): ## do ## STR1 onde R.sub.1, e R.sub.2 são cada um selecionado individualmente de um átomo do hidrogênio, uns C.sub.1 ao grupo C.sub.3 alkyl, uns C.sub.1 a C.sub.5 mono ou grupo do dihydroxyalkyl; phenyl ou benzyl substituído opcionalmente com um grupo alkoxy, ou R.sub.1 e R.sub.2 junto com o átomo do nitrogênio a que são formulário unido um o piperazine, piperidine, imidazole, ou anel do morpholine.

 
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