Pure brilliant sulpho naphthyl azo-amino sulpho-naphthol dye prepn.

    公开(公告)号:DE19518356A1

    公开(公告)日:1996-11-21

    申请号:DE19518356

    申请日:1995-05-19

    Applicant: HOECHST AG

    Abstract: The prepn. of an azo dye of formula (I) comprises: (a) coupling the diazonium salt of a naphthylamine of the formula (III) with a 6-sulpho-3-amino-8-naphthol of formula (IV) to a cpd. of the formula (V); (b) if Ac is acyl, hydrolysis with an alkali hydroxide at pH 11-14 and 60-95 deg C, addn. of a mineral acid to ppte. the free acid of formula (VI) at pH 1-3 and 20-90 deg C and isolating (VI); (c) if Z is a substd. triazinyl gp., dissolving the acid in water with alkali at pH 6-7.5 and reacting with a gp. of formula (VII) in neutral soln. at -5 to +15 deg C; and (d) if Y is F or Cl, opt. replacing by reaction with an amine of the formula HNR R . A-N=N-B-N(R)-Z (I) A-NH2 H-B-N(R)-Ac (II; Ac = H, 2-5 C alkanoyl or benzoyl) A-N=N-B-N(R)-Ac (III) (III; M, Ac = H) M = H or an alkali metal; m = 1, 2 or 3; R = H or 1-4 C alkyl; Z = H or gp. of formula (II); X = Cl or F; Y = Cl, F or -NR R ; R , R = H or 1-4 C alkyl, opt. with the usual substits. for dyes; or R = 5-8 C cycloalkyl or phenyl, opt. with 1-3 sulpho, carboxy, 1-4 C alkyl, 1-4 C alkoxy or Cl substits. or a vinylsulphonyl or beta -sulphato-ethylsulphonyl, beta -chloroethylsulphonyl or beta -thiosulphato-ethylsulphonyl substits. or one sulphonyl substit. and 1 or 2 of the other substits.; or -NR R = satd. heterocycle with one 4-8 C alkylene or a heterocycle with another hetero gp. and two 1-4 C alkylene gps.. Ac = H, 2 - 5 C alkanoyl or benzoyl. In (V); Ac - 2 - 5 C alkanoyl or benzoyl.

    2.
    发明专利
    未知

    公开(公告)号:BR9205039A

    公开(公告)日:1993-06-22

    申请号:BR9205039

    申请日:1992-12-17

    Applicant: HOECHST AG

    Abstract: Reactive dyes are described, such as, for example, azo dyes and their heavy metal complex derivatives, anthraquinone, phthalocyanine and formazan dyes, which contain a reactive group of the vinylsulphone series and additionally a group of the general formula in which R represents hydrogen or denotes lower alkyl which can be substituted by substituents customary in dyes, and Q and Q both independently of one another each denote lower alkyl which is substituted by 1 or 2 lower alkanoyl groups or 1 or 2 lower alkoxy-carbonyl groups or by one such alkoxycarbonyl group and alkanoyl group, or an amino group which is substituted by optionally substituted aryl and/or alkyl radicals, or optionally substituted alkoxy, aryloxy, alkylthio or arylthio radicals or a cyanamido radical. The novel dyes dye material containing hydroxyl and/or carboxamide groups, such as cellulose fibre materials, wool and polyamides, in brilliant shades and are additionally suitable for discharge and reserve printing.

    3.
    发明专利
    未知

    公开(公告)号:BR9204411A

    公开(公告)日:1993-05-18

    申请号:BR9204411

    申请日:1992-11-13

    Applicant: HOECHST AG

    Abstract: Water-soluble dyes are described, such as azo dyes, metal complex dyes, anthraquinone, phthalocyanine and formazan dyes, which contain a fiber-reactive group of the vinyl sulfone series which, if desired, is bound via a bridging member, and furthermore contain a 4-cyanamido-1,3,5-triazin-6-ylamino radical which is substituted in the 2 position by a group of the formula (2) (2) in which Rz is hydrogen or a lower alkyl group which is unsubstituted or substituted by alkyl, hydroxy, cyano, lower alkoxy, carboxyl, sulfamoyl, sulfo or sulfato or by a substituted or unsubstituted phenyl radical or is a cyclohexyl radical or a substituted or unsubstituted phenyl radical, W is an aryl, alkylenearyl, arylenealkyl, alkylenearylenealkyl or arylenealkylenearyl radical substituted by 1 to 4 water-solubilizing substituents, it being possible for these aryl, arylene, alkyl and alkylene radicals to be additionally substituted and/or interrupted by hetero groups, A is the number zero or 1, and B is the number 1 or 2, the sum of (A+B) being the number 2. The dyes are fiber-reactive and are suitable for the dyeing of hydroxy- and/or carboxamido-containing material, in particular fiber material, such as cotton, wool, silk and synthetic polyamide, by the procedures known for fiber-reactive dyes.

    Prepn. of water-soluble red reactive azo dye with low electrolyte content

    公开(公告)号:DE19519620A1

    公开(公告)日:1996-12-05

    申请号:DE19519620

    申请日:1995-05-29

    Applicant: HOECHST AG

    Abstract: Prepn. of a water-soluble amino-fluorotriazinyl-substd. azo dye of formula (I) comprises coupling the diazonium salt of an aniline of the formula D-NH2 with a 1-(2,4-difluoro-1,3,5-triazin-6-yl-amino)-8-naphthol-6-mono- or 3(4),6-di-sulphonic acid or salt in aq. medium at pH 3-6 and 0-35 deg C in a coupling time of 2-15 mins.; and reacting the difluorotriazinyl cpd. with HNR1R2 at 5-30 deg C and pH 5.5-9; D-N=N-K (I); K = a 1-(2-amino-4-fluoro-1,3,5-triazin-2-yl-amino)-8-hydroxy-6-sulpho- or 3(4),6-disulpho-naphth-7-yl gp. of the formula (A); M = H or an alkali metal; n = 0 or 1; R1 = H or opt. substd. 1-4 C alkyl; R2 = as R1 or 5-8 C cycloalkyl; or R1 + R2 = 4-6 C alkylene, opt. with 1 or 2 hetero gps. in the chain; D = the residue of a diazo component of formula (IIA) or (IIB); R3 = H, sulphamoyl, COOM, NO2 or -SO2-Z; Z = vinyl or -CH2CH2U; U = a gp. eliminated by alkali to form a vinyl gp.; R4 = H, 1-4 C alkyl, 1-4 C alkoxy or -SO3M; R5 = H, NO 2 or 1-4 C alkoxy; R6 = H, 1-4 C alkyl, 1-4 C alkoxy, -SO3M, NO2 or -SO2-Z; R7 = H, 1-4 C alkyl or 1-4 C alkoxy.

    6.
    发明专利
    未知

    公开(公告)号:DE4416015A1

    公开(公告)日:1995-11-09

    申请号:DE4416015

    申请日:1994-05-06

    Applicant: HOECHST AG

    Abstract: Continuous reaction of an amino gp-contg. organic dye of formula D-NH-R (II) with 2,4,6-trifluoro-S-triazine (TFTZ) is effected by: (a) treating a cooled, neutral aq. soln. or suspension of (II) with a 1.0-2.0 fold molar amt. of buffer; and (b) supplying the prod., continuously, and simultaneously with TFTZ, to a reactor in which the two components are intensively mixed, dwell time in the reactor being 1-30 secs. In (II), D = sulpho gp-contg. mono- or polyazo, azo metal complex, anthraquinone, phthalocyanine, formazan, azomethine, dioxazine, phenazine, stilbene, triphenylmethane, xanthene, thioxanthone, nitroaryl, naphthoquinone, pyrenequinone or perylenetetracarboxamide dye; R = H or opt. substd. 1-4C alkyl. Pref.(II) is the copper formazan dye of formula (IIa), 3,6,8-trisulpho-2-(4-amino-2-ureidophenylazo)naphthalene trisodium salt or 3,4,8- or 3,6,8- trisulpho-2-(2-acetamido-4- aminophenylazo)naphthalene trisodium salt.

    7.
    发明专利
    未知

    公开(公告)号:DE4415385A1

    公开(公告)日:1995-11-09

    申请号:DE4415385

    申请日:1994-05-02

    Applicant: HOECHST AG

    Abstract: New dye mixts. contain: (A) one or more 2,7-bis-(vinyl or substd. ethyl-sulphonylphenylazo)-3,6-disulpho-8-amino-1-naphthol deriv. disazo dye(s) of formula (I); and (B) one or more 4-anilino-6-fluoro-s-triazin-2-ylamino-substd. 2-(vinyl- or substd. ethyl-sulphonylphenylazo)-3-sulpho-1-naphthol deriv. amonoazo dye(s) of formula (II). Molar ratio (I):(II) is pref. 1: 0.3-1.4, esp. 1:0.5-1. M = H or alkali metal; R = sulpho or carboxy; R = H, Me, Et, OMe, OEt, sulpho or carboxy; R = H, Me, Et, OMe or OEt; Y = vinyl, 2-chloroethyl, 2-thiosulphatoethyl, 2-phosphatoethyl, or 2-sulphatoethyl. Monoazo dyes of formula (IIl; R = SO3M in the tho-position) i.e. cpds. (IIA), are new. Three methods of preparing (IIA) are claimed.

    8.
    发明专利
    未知

    公开(公告)号:BR9402482A

    公开(公告)日:1995-01-25

    申请号:BR9402482

    申请日:1994-06-20

    Applicant: HOECHST AG

    Abstract: Described are fibre-reactive, sulpho-containing mono-, dis- and polyazo dyes, such as trisazo dyes, which contain a fibre-reactive grouping of the general formula in which X is chlorine or fluorine and the group -SO2-Y is in each case a fibre-reactive group of the vinyl sulphone series and which additionally possesses elsewhere in the dye molecule one or more further fibre-reactive groups of the vinyl sulphone series. They are very highly suitable for dyeing hydroxyl- and/or carboxamido-containing material, especially fibre material, such as wool and synthetic polyamide fibres and especially cellulose fibre materials, such as cotton.

    Water-soluble anthraquinone compounds, preparation thereof and use thereof as dyes

    公开(公告)号:DE4320562A1

    公开(公告)日:1995-01-05

    申请号:DE4320562

    申请日:1993-06-22

    Applicant: HOECHST AG

    Abstract: Described are anthraquinone compounds conforming to the formula (1) where M is hydrogen or an alkali metal or the mole equivalent of an alkaline earth metal; A is a radical of the formula (2) where M is defined above, m is zero or 1, and B is phenylene which can be substituted by from 1 to 4 substituents selected from the group consisting of 2 sulpho, 1 carboxyl, 4 alkyl of 1 to 4 carbon atoms and 2 alkoxy of 1 to 4 carbon atoms, or is alkylene, phenylene-alkylene or alkylene-phenylene, in which case the alkylene radicals are those of 1 to 4 carbon atoms and the phenylene radicals are unsubstituted or substituted by 1, 2 or 3 substituents selected from the group consisting of alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms and sulpho, or is cyclohexylene, alkylene-cyclohexylene, cyclohexylene-alkylene or alkylene-cyclohexylene-alkylene, in which case the cyclohexylene radicals can additionally be substituted by 1 or 2 methyl groups and the alkylene radicals are those of 1 to 4 carbon atoms, or is a radical of the formula -phen-D-phen-, in which each phen is, independently of the other, a phenylene radical which is unsubstituted or substituted by 1 or 2 substituents selected from the group consisting of sulpho, alkyl of 1 to 4 carbon atoms and alkoxy of 1 to 4 carbon atoms, and D is a direct bond or a group of the formula -NH-, -O-, -SO2-, -CO-NH-, -NH-CO-, -SO2-NH-, -NH-SO2- or -SO2-NH-SO2-; R ... Original abstract incomplete.

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