New heterocyclic dye precursors for hair coloration

ORGN 429

Eric P. Métais, emetais@rd.loreal.com1, Aziz Fadli1, Laurent Vidal2, Eric Dehaudt3, Nicole Bonaventure1, Jinzhu Xu4, Alain Lagrange5, Jérôme Gomar1, Jean-Marc Ascione6, Florence Laurent6, François Cottard6, and Jean-Baptiste Saunier6. (1) Hair Care Chemistry, L'Oréal, 1, avenue Eugène Schueller, Aulnay-Sous-Bois, 93601, France, (2) Make-Up Chemistry, L'Oréal, Aulnay-Sous-Bois, 93601, France, (3) Hair Care Evaluation, L'Oréal, Aulnay-Sous-Bois, 93601, France, (4) Outsourcing and Process Chemistry, L'Oréal, Le Thillay, 95500, France, (5) Hair Coloration Applied Research, L'Oréal, Clichy, 92117, France, (6) International Hair Color Development, L'Oréal, Clichy, 92117, France
2,3-diaminodihydropyrazolopyrazolones and 2,3-diamino-tetrahydro-pyrazolopyridazinones have been designed and found to be new heterocyclic hair dye precursors to give permanent hair color in various shades and a perfect coverage of white hair. We will present and discuss the design, synthetic pathways and characteristics of these new compounds. Color properties on hair will be discussed.
 

Heterocycles and Aromatics, Molecular Recognition and Self Assembly
8:00 PM-10:00 PM, Tuesday, April 8, 2008 Morial Convention Center -- Hall A, Poster

Division of Organic Chemistry

The 235th ACS National Meeting, New Orleans, LA, April 6-10, 2008