Couplers for use in oxidative hair dyeing

   
   

Couplers 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.

 
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