Aminophenol derivatives and their use in oxidation hair...

Details Aminophenol derivatives and their use in oxidation hair... Aminophenol derivatives and their use in oxidation hair...

C - Chemistry, Metallurgy

07

C

C07C 215/80 (2006.01) C07C 217/84 (2006.01) C07C 229/44 (2006.01) D06P 1/32 (2006.01) D06P 3/08 (2006.01)

Patent

CA 2248261

Described are aminophenol derivatives of general formula (I) in which one of the two groups R1 and R2 is hydrogen and the other is hydrogen, chlorine or fluorine; one of the two groups R3 and R4 is hydrogen, a C1-4-alkoxy group, a C1-4-alkyl group, a C1-4-hydroxyalkyl group, preferably with a terminal hydroxy group or halogen and the other is one of the groups: -O-CH2-CH=CH2, - CH=CH-COOX in which X is hydrogen or a physiologically tolerable inorganic or organic cation and, in the case when the group concerned is R3, the group (a) and, in the case when the group concerned is R4, (b), in which -A- in each case is one of the groups -(CH2)x- in which x = 1 to 4, -O-(CH2)y-O- in which y = 1 to 4, -O-(CnH2n-z(OH)z)-O- in which n = 1 to 10 and z = 1 or, when n is greater than or equal to 3, z = 2, -O-(C2H4-O)u- in which u = 1 to 4 and -O- (C3H6-O)v- in which v is 1 to 4. Such derivatives are particularly suitable for use as developers in oxidative dyes for dyeing keratin fibres. Brilliant hues with a high degree of fastness are obtained with the usual coupling agents, particularly when dyeing hair.

L'invention concerne des dérivés d'aminophénol de la formule générale (I) dans laquelle l'un des deux radicaux R?1¿ et R?2¿ est hydrogène et l'autre est hydrogène, chlore ou fluor; l'un des deux radicaux R?3¿ et R?4¿ est hydrogène, un groupe alcoxy C¿1-4?, un groupe alkyle C¿1-4?, un groupe hydroxyalkyle C¿1-4?, de préférence avec un groupe hydroxy en fin de chaîne, ou bien halogène, et l'autre est l'un des groupes: -O-CH¿2?-CH=CH¿2?, -CH=CH-COOX, où X est hydrogène ou un cation organique ou inorganique physiologiquement tolérable, et, au cas où le radical concerné est R?3¿, le groupe (a) et, au cas où le radical concerné est R?4¿, (b), dans lesquels -A- désigne respectivement un des groupes -(CH¿2?)¿x?- avec x = 1 - 4, -O-(CH¿2?)¿y?-O- avec y = 1 - 4, -O-(C¿n?H¿2n-z?(OH)¿z?)-O- avec n = 1 - 10 et z = 1 ou, lorsque n est supérieur ou égal à 3, z = 2, -O-(C¿2?H¿4?-O)¿u?- avec u = 1 - 4 et -O-(C¿3?H¿6?-O)¿v?- avec v = 1 - 4. Ces dérivés sont particulièrement appropriés comme développeurs dans des colorants d'oxydation pour teindre les fibres kératiniques. Des nuances brillantes assorties d'un degré élevé de résistance sont obtenues avec les agents de couplage habituels, notamment lors de la teinture des cheveux.

Affiliated with

Also associated with

Rating

Aminophenol derivatives and their use in oxidation hair... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aminophenol derivatives and their use in oxidation hair..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aminophenol derivatives and their use in oxidation hair... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1500801