Diaminobenzoquinones, process of preparation thereof and dye...

Details Diaminobenzoquinones, process of preparation thereof and dye... Diaminobenzoquinones, process of preparation thereof and dye...

A - Human Necessities

61

K

167/302, 260/396

A61K 8/41 (2006.01) A61Q 5/10 (2006.01) C07D 295/13 (2006.01)

Patent

CA 1025449

PRECIS 2,5-diamino-1,4-benzoquinones sont utilisés dans la production de composés pour teinture à cheveux et peuvent être préparés en condensant un dérivé correspondant du 3-amino-4- méthoxy phénol avec un dérivé correspondant hydroxy aniline ou un dérivé phenylènediamine, un dérivé correspondant benzoquinone imine ou un dérivé correspondant nitroso.

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