公开(公告)号：DE3366701D1

公开(公告)日：1986-11-13

申请号：DE3366701

申请日：1983-08-08

Applicant: HOECHST AG

Inventor： MEININGER FRITZ DR ,  STEUERNAGEL HANS HELMUT DR

IPC: C09B45/28 ,  C09B62/095 ,  C09B62/44 ,  C09B62/515 ,  D06P1/38 ,  D06P3/10 ,  D06P3/66

Abstract: 1. Water-soluble copper-complex disazo compounds of the general formula (1) see diagramm : EP0103156,P35,F1 in which : D is a benzene nucleus in which the substituent R**1 represents a sulfo group or a carboxy group, R**2 represents a hydrogen atom, a sulfo group, a carboxy group, an alkyl group of 1 to 4 C-atoms, an alkoxy group of 1 to 4 C-atoms, a chlorine atom, a bromine atom, an alkanoylamino group of 2 to 5 C-atoms or a benzoylamino group and R**3 represents a hydrogen atom, an alkyl group of 1 to 4 C-atoms, an alkoxy group of 1 to 4 C-atoms or a chlorine atom, or D is a naphthalene nucleus in whihc the substituent R**1 represents a sulfo group and R**2 and R**3 each represent a hydrogen atom or a sulfo group, it being possible for R**1, R**2 and R**3 in all cases to have meanings which are identical with one another or different from one another ; M is a hydrogen atom or the equivalent of an alkali or alkaline earth metal or of a trivalent metal of the third main group ; R' is a hydrogen atom or a sulfo group which can be attached in the 5-, 6-, 7- or 8-position of the naphthol radical ; R* is a group of the general formula (2) see diagramm : EP0103156,P36,F2 which is attached in the 5-, 6-, 7- or 8-position of the naphthol radical and in which R is a hydrogen atom or an alkyl group of 1 to 6 C-atoms which can be substituted by a hydroxy group, a sulfo group or an acylated hydroxy group, A is a phenylene radical which can be substituted by one or two substituents belonging to the group comprising alkyl of 1 to 4 C-atoms, alkoxy of 1 to 4 C-atoms, chlorine, bromine, carboxy and sulfo, or is a naphthylene radical which can be substituted by a sulfo group, and Y represents the vinyl group or a group of the formula -CH2 -CH2 -Z in which Z denotes a substituent which can be eliminated under alkaline conditions, but disclaimed are compounds of the general formula (1) in which, at the same time, D denotes a benzene nucleus and R**1 and R**2 are both sulfo groups located in the para-position relative to one another and R' denotes a sulfo group located in the 5-position of the naphthol radical and R* denotes a group of the general formula (2) located in the 6-position of the naphthol radical.

公开(公告)号：CH648860A5

公开(公告)日：1985-04-15

申请号：CH1264278

申请日：1978-12-12

Applicant: HOECHST AG

Inventor： STEUERNAGEL HANS HELMUT DR

IPC: C09B45/14 ,  C09B62/515 ,  D06P3/10 ,  D06P3/66

公开(公告)号：CH594782B

公开(公告)日：1978-01-31

申请号：CH916275

申请日：1975-07-14

Applicant: HOECHST AG

Inventor： BAUER AUGUST ,  HOYER ERNST DR ,  MEININGER FRITZ DR ,  STEUERNAGEL HANS HELMUT DR

IPC: C09B62/51 ,  D06P3/66

公开(公告)号：DE3603101A1

公开(公告)日：1987-08-06

申请号：DE3603101

申请日：1986-02-01

Applicant: HOECHST AG

Inventor： MEININGER FRITZ DR ,  STEUERNAGEL HANS HELMUT DR

IPC: C09B62/513 ,  C07D251/50 ,  C09B62/09 ,  C09B62/44 ,  D06P1/38 ,  D06P3/66 ,  C09B62/01 ,  C09B43/11 ,  D06P3/10

Abstract: 1. A water-soluble disazo compound which conforms to the general formula (1) see diagramm : EP0231836,P19,F1 in which D is the 4,6,8-trisulfo-naphthyl-2- radical ; R**1 is a hydrogen atom, an alkyl group of 1 to 4 carbon atoms, an alkoxy group of 1 to 4 carbon atoms, the ureido group or an alkanoylamino group of 2 to 5 carbon atoms ; R**2 is a hydrogen atom, an alkyl group of 1 to 4 carbon atoms or an alkoxy group of 1 to 4 carbon atoms, R**3 is a hydrogen atom, an alkyl group of 1 to 4 carbon atoms, an alkoxy group of 1 to 4 carbon atoms, the ureido group or an alkanoylamino group of 2 to 5 carbon atoms ; 4 is a phenylene radical which can be substituted by 1 or 2 substituents from the group alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, chlorine, bromine, carboxyl and sulfo ; Y is the vinyl group or an ethyl group which is substituted in the beta-position by a substituent which is eliminatable under alkaline conditions.

公开(公告)号：DE3261867D1

公开(公告)日：1985-02-28

申请号：DE3261867

申请日：1982-01-20

Applicant: HOECHST AG

Inventor： MEININGER FRITZ DR ,  OTTEN JOACHIM DR ,  STEUERNAGEL HANS HELMUT DR

IPC: C09B62/51 ,  C09B62/085 ,  C09B62/44 ,  C09B67/24 ,  D06P3/10 ,  D06P3/66

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.

公开(公告)号：DE3910606A1

公开(公告)日：1990-10-04

申请号：DE3910606

申请日：1989-04-01

Applicant: HOECHST AG

Inventor： STEUERNAGEL HANS HELMUT DR

IPC: C09B3/52

Abstract: The production of vat dyes of the dibenzopyrenequinone type is conventionally based on 1,5-dibenzoylnaphthalene. To prepare this starting material for the oxidative ring closure, naphthalene is dibenzoylated in aluminium chloride using a benzoyl chloride excess of 70%. When the naphthalene derivative produced is isolated, this excess benzoyl chloride has to be inconveniently washed out in the form of benzoic acid. In addition, for the subsequent cyclisation, the resulting dibenzoyl compound, which still contains many by-products, must first be brought to the required purity (>/=de 95%) by reprecipitation from organic solvent. The invention now provides a one-pot process starting from naphthalene. In this process, the dibenzoylation of the naphthalene is carried out with an excess of only 5% of benzoyl chloride, and the melt of 1,5-dibenzoylnaphthalene is then - without intermediate isolation thereof - subjected to the oxidative ring closure reaction, bromination and finally work-up to the desired dye.

公开(公告)号：DE3262676D1

公开(公告)日：1985-04-25

申请号：DE3262676

申请日：1982-08-14

Applicant: HOECHST AG

Inventor： MEININGER FRITZ DR ,  SCHWAIGER GUNTHER DR ,  STEUERNAGEL HANS HELMUT DR

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

Abstract: 1. Water-soluble monoazo compounds of the general Formula (1) see diagramm : EP0072557,P22,F3 in which D is a group of the Formula (2a) or (2b) see diagramm : EP0072557,P22,F4 see diagramm : EP0072557,P22,F5 in which M is a hydrogen atom or the equivalent of a monovalent, divalent or trivalent metal ; R**1 is a hydrogen atom, an alkyl group of 1 to 4 C-atoms, an alkoxy group of 1 to 4 C-atoms or a chlorine atom ; R**2 is a hydrogen atom, an alkyl group of 1 to 4 C-atoms or an alkoxy group of 1 to 4 C-atoms, the formula radicals R**1 and R**2 can have meanings which are identical to one another or different from one another, R is the methyl group, a carboxy group or a carbalkoxy group of 2 to 5 C-atoms, K is a phenyl radical or naphthyl radical, both of which can be substituted by 1, 2 or 3 substituents from the group consisting of sulfo, carboxy, sulfamoyl, carbamoyl, alkyl of 1 to 4 C-atoms, alkoxy of 1 to 4 C-atoms and chlorine, and optionally by a group of the formula -SO2 -Z in which Z represents the beta-hydroxyethyl group or a group Y of the meaning given below, Y is the vinyl group or an ethyl group containing in the beta-position a radical which can be eliminated as an anion under alkaline conditions, p represents the number zero or 1, but is mandatorily 1 if the formula radical K is not substituted by the group -SO2 -Y.

公开(公告)号：DE3229799A1

公开(公告)日：1984-02-23

申请号：DE3229799

申请日：1982-08-11

Applicant: HOECHST AG

Inventor： MEININGER FRITZ DR ,  STEUERNAGEL HANS HELMUT DR

IPC: C09B45/28 ,  C09B62/095 ,  C09B62/44 ,  C09B62/515 ,  D06P1/38 ,  D06P3/10 ,  D06P3/66 ,  C09B62/04 ,  D06P1/10

Abstract: 1. Water-soluble copper-complex disazo compounds of the general formula (1) see diagramm : EP0103156,P35,F1 in which : D is a benzene nucleus in which the substituent R**1 represents a sulfo group or a carboxy group, R**2 represents a hydrogen atom, a sulfo group, a carboxy group, an alkyl group of 1 to 4 C-atoms, an alkoxy group of 1 to 4 C-atoms, a chlorine atom, a bromine atom, an alkanoylamino group of 2 to 5 C-atoms or a benzoylamino group and R**3 represents a hydrogen atom, an alkyl group of 1 to 4 C-atoms, an alkoxy group of 1 to 4 C-atoms or a chlorine atom, or D is a naphthalene nucleus in whihc the substituent R**1 represents a sulfo group and R**2 and R**3 each represent a hydrogen atom or a sulfo group, it being possible for R**1, R**2 and R**3 in all cases to have meanings which are identical with one another or different from one another ; M is a hydrogen atom or the equivalent of an alkali or alkaline earth metal or of a trivalent metal of the third main group ; R' is a hydrogen atom or a sulfo group which can be attached in the 5-, 6-, 7- or 8-position of the naphthol radical ; R* is a group of the general formula (2) see diagramm : EP0103156,P36,F2 which is attached in the 5-, 6-, 7- or 8-position of the naphthol radical and in which R is a hydrogen atom or an alkyl group of 1 to 6 C-atoms which can be substituted by a hydroxy group, a sulfo group or an acylated hydroxy group, A is a phenylene radical which can be substituted by one or two substituents belonging to the group comprising alkyl of 1 to 4 C-atoms, alkoxy of 1 to 4 C-atoms, chlorine, bromine, carboxy and sulfo, or is a naphthylene radical which can be substituted by a sulfo group, and Y represents the vinyl group or a group of the formula -CH2 -CH2 -Z in which Z denotes a substituent which can be eliminated under alkaline conditions, but disclaimed are compounds of the general formula (1) in which, at the same time, D denotes a benzene nucleus and R**1 and R**2 are both sulfo groups located in the para-position relative to one another and R' denotes a sulfo group located in the 5-position of the naphthol radical and R* denotes a group of the general formula (2) located in the 6-position of the naphthol radical.

公开(公告)号：CH606349A5

公开(公告)日：1978-10-31

申请号：CH591777

申请日：1977-05-11

Applicant: HOECHST AG

Inventor： HOYER ERNST DR ,  STEUERNAGEL HANS HELMUT DR ,  WAGNER DIETER DR

IPC: C09B43/24 ,  C09B62/503 ,  C09B62/70

Abstract: Improved process for the sulfatation of the hydroxy group of a beta -hydroxy-ethylsulfonyl group present in compounds selected from the dyestuff class which comprises carrying out the reaction in a machine operating with a kneading action and effect and with the use of only 1 to 5 times the equimolar amount of a concentrated sulfuric acid, of oleum or sulfur dioxide itself. The beta -sulfatoethylsulfonyl group containing dyestuffs, thus prepared have a high purity and are obtained in a high yield and esterification rate. Above all, the novel process is distinguished by a highly reduced salt and acid content of the waste water.