| abstract |
New compounds suitable for dyeing keratin fibres, especially human hair, are described. The compounds have the formula: <IMAGE> (I) or an acid addition salt thereof, in which formula either R1 and R2 form, together with the nitrogen atom to which they are bonded, a morpholino or piperidino ring and R represents a hydrogen atom, or R1 represents a hydrogen atom, R2 represents a furfuryl or methoxyethyl radical and R represents a hydrogen atom or a methyl radical. |