摘要 |
Disclosed are nitro-sulfide dyes of formula (1), their salts, isomers, hydrates and other solvates, wherein R1, R2, R3, independently from each other are hydrogen; C1-C20alkyl or C1-C20alkoxy, which may be substituted by one or more C1-C5alkoxy, halogen, —NH2, mono-C1-C5alkylamino, di-C1-C5alkylamino, —NO2 or hydroxy; C3-C6cycloalkyl; —C(O)H; —C(O)—C1-C5alkyl; —C(O)OH; —C(O)O—C1-C5alkyl; halogen; NO2; OH; SH; phenyl, which may be substituted by one or more C1-C5alkyl, C1-C5alkoxy, halogen, —NH2, mono-C1-C5alkylamino, di-C1-C5alkylamino, —NO2 or hydroxy; or a radical of formula (1a) —NR4R5, wherein R4 and R5 independently from each other are hydrogen; C1-C12alkyl, which may be substituted by one or more C1-C5alkyl, C1-C5-alkoxy, hydroxy or —(CO)—H; —(CO)—C1-C5alkyl; phenyl or phenyl-C1-C4alkyl, wherein the phenyl moiety may be substituted by one or more C1-C5alkyl, C1-C5alkoxy, halogen, —NH2, mono-C1-C5alkylamino, di-C1-C5alkylamino, —NO2, carboxy or hydroxy; or a radical of formula (2); wherein at least one of the radicals R1, R2 or R3 is NO2; Y1 is C1-C10alkylene; C5-C10cycloalkylene; C5-C10arylene; or C5-C10arylene-(C1-C10alkylene); Z1 is the direct bond; formula (3); or a cationic biradical of a saturated, aromatic or heteroaromatic group; Q1 is —C(O)—; —C(O)O—; —OCO—; —N(R6)—X2—; —CON(R6)—; —(R6)NC(O)—; —O—; —S—; —S(O)—; or —S(O)2—; X1 and X2 independently from each other are the direct bond; C1-C10alkylene; C5-C10cycloalkylene; C5-C10arylene; or C5-C10arylene-(C1-C10alkylene); and R6, R7 and R8 independently from each other are hydrogen; C1-C14alkyl; C2-C14alkenyl; C6-C10aryl; C6-C10aryl-C1-C10alkyl; or C1-C10alkyl(C5-C10aryl); m is 1; or 2; U is hydrogen, if m is 1; or the direct bond, if m is 2; with the proviso that the method does not comprise contacting hair with an enzyme of the type of a protein disulfidisomerase (EC 5.3.4.1). Further, the present invention relates to novel sulfide compounds, compositions thereof, especially comprising other dyes, and to processes for their preparation.
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