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    MONOAZO COMPOUNDS, PROCESS FOR THEIR PREPARATION AND THEIR USE AS DYESTUFFS
    1.
    发明专利
    MONOAZO COMPOUNDS, PROCESS FOR THEIR PREPARATION AND THEIR USE AS DYESTUFFS 未知

    公开(公告)号：DE3368074D1

    公开(公告)日：1987-01-15

    申请号：DE3368074

    申请日：1983-05-06

    Applicant: HOECHST AG

    Inventor： BREDERECK HANS-JOACHIM DR ,  HOYER ERNST DR ,  MEININGER FRITZ DR

    IPC: C09B29/30 ,  C09B62/085 ,  C09B62/09 ,  C09B62/44 ,  C09B62/51 ,  C09B62/513 ,  D06P1/38 ,  D06P3/10 ,  D06P3/66

    Abstract: 1. Water-soluble azo compounds of the general formula (1) see diagramm : EP0094055,P17,F4 in which M represents a hydrogen atom or the equivalent of a metal, D is a benzene nucleus or a naphthalene nucleus, R**1 denotes a hydrogen atom or an alkyl group of 1 to 4 C-atoms or a sulfo group, R**2 is a hydrogen atom or an alkyl group of 1 to 4 C-atoms, R**3 represents a hydrogen atom, an alkyl group of 1 to 4 C-atoms or an alkoxy group of 1 to 4 C-atoms and R**4 denotes a hydrogen atom or an alkyl group of 1 to 4 C-atoms or an alkoxy group of 1 to 4 C-atoms, where R**1 , R**2 , R**3 and R**4 can be identical to or different from one another, Y is a fluorine atom or a bromine atom or, preferably, a chlorine atom and X in each case denotes a beta-sulfatoethyl group or a beta-thiosulfatoethyl group or a beta-chloroethyl group or a vinyl group, where the two X can be identical to or different from one another, and the group(s) of the formula -SO2 -X are bonded in the benzene nucleus in meta- or para-position relative to the azo group, respectively to the acylated amino group, and can be bonded in the naphthalene nucleus in any position, and the second group of the formula -SO3 M in the radical of the aminonaphtholdisulfonic acid is bonded in meta- or para-position relative to the acylated amino group.

    WATER SOLUBLE MONOAZO COMPOUNDS, PROCESS FOR THEIR PREPARATION AND THEIR USE AS DYESTUFFS
    2.
    发明专利
    WATER SOLUBLE MONOAZO COMPOUNDS, PROCESS FOR THEIR PREPARATION AND THEIR USE AS DYESTUFFS 未知

    公开(公告)号：DE3263101D1

    公开(公告)日：1985-05-23

    申请号：DE3263101

    申请日：1982-05-29

    Applicant: HOECHST AG

    Inventor： MEININGER FRITZ DR ,  HOYER ERNST DR

    IPC: C09B62/51 ,  C09B62/085 ,  C09B62/44 ,  D06P3/10 ,  D06P3/66

    Abstract: 1. Water-soluble azo compounds of the general formula (1) see diagramm : EP0066819,P10,F4 in which R1 denotes a hydrogen atom, an alkyl group of 1 to 4 C-atoms or an alkoxy group of 1 to 4 C-atoms, R2 is identical to or different from R1 and is a hydrogen atom, an alkyl group of 1 to 4 C-atoms or an alkoxy group of 1 to 4 C-atoms, the group -SO2 - X is bonded to the benzene nucleus in the meta- or para-position relative to the azo group, but R1 and R2 are not simultaneously hydrogen if the group -SO2 - X is bonded in the para-position relative to the azo group, X is the vinyl group or a group of the formula -CH2 -CH2 -Y in which Y denotes a group which can be eliminated under alkaline conditions, and M represents a hydrogen atom or an alkali metal or the equivalent of an alkaline earth metal.

    5.
    发明专利
    未知

    公开(公告)号：DE3202688A1

    公开(公告)日：1983-08-04

    申请号：DE3202688

    申请日：1982-01-28

    Applicant: HOECHST AG

    Inventor： MEININGER FRITZ DR ,  HOYER ERNST DR ,  FASS RUDOLF

    IPC: C09B62/095 ,  C09B62/44 ,  C09B62/515 ,  D06P1/382 ,  D06P1/384 ,  D06P3/10 ,  D06P3/24 ,  D06P3/66 ,  C09B62/012 ,  C09B45/28 ,  C09B31/057 ,  D06P1/10 ,  D06P1/38 ,  D06P1/39

    Abstract: 1. Water-soluble copper-complex disazo compounds of the general formula (1) see diagramm : EP0085378,P48,F1 in which : m is the number zero or 1 (where in the case of m = 0 this group is hydrogen) ; the free azo group can be bonded in 6- or 7-position to the centrally located naphthalene nucleus ; if m is equal to 1, this sulfo group is bonded in the 5-position when the azo group is in the 6-position, and is bonded in the 6-position when the azo group is in the 7-position ; R**1 is a hydrogen atom or straight-chain or branched alkyl group having 1 to 4 carbon atoms which can be substituted ; R**2 is a hydrogen atom or a cycloalkyl group which can be substituted by 1 to 3 methyl groups, or a straight chain or branched alkyl group having 1 to 4 carbon atoms which can be substituted, or an optionally substitued aryl radical ; R**1 and R**2 can be identical to or different from each other ; or R**1 and R**2 are alkylene groups having 1 to 4 carbon atoms and form together with the nitrogen atom and optionally an oxygen, sulfur or nitrogen atom as a further heteroatom a heterocyclic 6-membered radical ; Y is the vinyl group or a group of the general formula (2) -CH2 -CH2 -X (2) in which X denotes an inorganic or organic radical which can be eliminated under alkaline conditions ; M is a hydrogen atom or the equivalent of a metal.

    9.
    发明专利
    未知

    公开(公告)号：CH613947A5

    公开(公告)日：1979-10-31

    申请号：CH943477

    申请日：1977-07-29

    Applicant: HOECHST AG

    Inventor： STEUERNAGEL HANS HELMUT DR ,  HOYER ERNST DR ,  MEININGER FITZ DR

    IPC: C07D231/24 ,  C07D231/26 ,  C07D231/46 ,  C09B62/507 ,  C07C147/12

    Abstract: An improved and novel process had been found for the esterification of aminophenol, amino-benzanilide and pyrazolone compounds containing a beta -hydroxyethylsulfonyl group, by means of sulfuric acid or sulfur trioxide which improvement is characterized by that the esterification is performed in a machine which is operating with a kneading action and effect, using per mol beta -hydroxyethylsulfonyl compound 1 to 2.5 times the equivalent molar amount of concentrated sulfuric acid, oleum or sulfur trioxide. This novel process has the great advantage that great amounts of sulfuric acid are saved which could charge the waste water, also in form of sodium sulfate formed after the required neutralization. Furthermore, the beta -sulfatoethylsulfonyl compounds formed as end-products in the esterification process are prepared by this novel process in higher yields, in a higher degree of esterification rate and in a higher purity. They are obtained in form of a powder or plastic mass from the kneading machine, which is well transportable and storable, and can advantageously used in the form of this consistency, without intermediate isolation of the pure beta -sulfato compound itself, directly for the preparation of azo dyestuffs which are poor of inert salts, possess a high tinctorial strength and purity.

    10.
    发明专利
    未知

    公开(公告)号：DE1957681A1

    公开(公告)日：1971-06-09

    申请号：DE1957681

    申请日：1969-11-17

    Applicant: HOECHST AG

    Inventor： HAEHNLE REINHARD DIPL-CHEM DR ,  HOYER ERNST DR

    IPC: C09B20060101 ,  C09B29/00 ,  C09B29/08 ,  C09B29/26 ,  D06P1/00 ,  D06P1/18

    Abstract: 1293270 Disperse monoazo dyes FARBWERKE HOECHST AG 16 Nov 1970 [17 Nov 1969] 54406/70 Heading C4P The invention comprises water - insoluble monoazo dyes of formula wherein D is the radical of a diazo component of the benzene series which may be substituted by a halogen atom and/or an alkyl, alkoxy, perfluoroalkyl, alkylsulphonyl, arylsulphonyl, alkoxycarbonyl, carbonamido, CN or NO 2 group, Y is a H or halogen atom or an alkyl, alkoxy or acylamino group, Z is a H or halogen atom or an alkyl or alkoxy group, R is H or an alkyl group which may be substituted and A is the 2-nitroisobutyl group. The dyes are prepared by azo coupling and are used to dye and print synthetic polyamide, polyester and cellulose acetate materials in yellow, orange red, blue and brown shades.

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