Pyrazolo 1,5-a composition for dyeing keratin fibers containing a pyrimidine derivative, dyeing process, novel pyrazolo 1,5-a pyrimidine derivatives and their preparation

摘要

PCT No. PCT/FR97/01057 Sec. 371 Date Dec. 31, 1997 Sec. 102(e) Date Dec. 31, 1997 PCT Filed Jun. 12, 1997 PCT Pub. No. WO97/49378 PCT Pub. Date Dec. 31, 1997Novel compositions for the oxidation dyeing of keratin fibres, comprising at least one specific pyrazolo[1,5-a]pyrimidine derivative, a dyeing process using these compositions, novel pyrazolo[1,5-a]pyrimidine derivatives and a process for their preparation.