Sulfur-containing nitroamino-benzene dyes, process and hair dye compositions
申请人:Bristol-Myers Squibb Company
公开号:EP0314162A2
公开(公告)日:1989-05-03
Sulfur containing nitroamino benzene dyes of formula:
and salts thereof wherein
(a) R₁ and R₂ are the same or different and are selected from the group consisting of alkyl, hydroxyalkyl, polyhydroxyalky, aminoalkyl, monoalklylaminoalkyl and dialkylaminoalkyl,
wherein
(b) n is 0, 1 or 2, and wherein
(c) The group
occupies a position that is meta or para to the group - NHR₁; a process for synthesizing these compounds and their use as direct dyeing hair dyes also being disclosed.
Sulfur-containing nitroaminobenzene dyes, process and hair dye
申请人:Clairol Incorporated
公开号:US04799934A1
公开(公告)日:1989-01-24
Novel sulfur containing nitroamino benzene dyes of formula: ##STR1## and salts thereof wherein (a) R.sub.1 and R.sub.2 are the same or different and are selected from the group consisting of alkyl, hydroxyalkyl, polyhydroxyalky, aminoalkyl, monoalkylamioalkyl and dialkylaminoalkyl, wherein (b) n is 0, 1 or 2, and wherein (c) the group ##STR2## occupies a position that is meta or para to the group-NHR.sub.1 ; a process for synthesizing these compounds and their use as direct dyeing hair dyes are being disclosed.