Couplers for use in oxidative hair dyeing

   
   

Couplers for hair coloring compositions for oxidative dyeing of hair are compounds of the formula (1): ##STR1## wherein Y is CH or N and Z is H, OCH.sub.3, NH.sub.2 and alkyl of from 1 to 4 carbon atoms, with the proviso that when Y is N the 2,4-diaminophenoxy moieties are positioned at the 4 and 6 positions on the pyrimidine ring.

Les coupleurs pour des compositions en coloration de cheveux pour teindre oxydant des cheveux sont des composés de la formule (1) : ## du ## STR1 où Y est ch ou N et Z est H, OCH.sub.3, NH.sub.2 et alkyl de de 1 à 4 atomes de carbone, à la condition que quand Y est N les parties 2,4-diaminophenoxy soient placées aux 4 et 6 positions sur la pyrimidine sonnez.

 
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