ES418732A1 - Process for the manufacture of tetrakis-azo dyestuffs - Google Patents
Process for the manufacture of tetrakis-azo dyestuffsInfo
- Publication number
- ES418732A1 ES418732A1 ES418732A ES418732A ES418732A1 ES 418732 A1 ES418732 A1 ES 418732A1 ES 418732 A ES418732 A ES 418732A ES 418732 A ES418732 A ES 418732A ES 418732 A1 ES418732 A1 ES 418732A1
- Authority
- ES
- Spain
- Prior art keywords
- coupling
- subjected
- formula
- acid
- see formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
- C09B35/50—Tetrazo dyes
- C09B35/60—Tetrazo dyes of the type
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B41/00—Special methods of performing the coupling reaction
- C09B41/001—Special methods of performing the coupling reaction characterised by the coupling medium
- C09B41/004—Special methods of performing the coupling reaction characterised by the coupling medium containing a reaction assistant, e.g. urea
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Coloring (AREA)
- Cosmetics (AREA)
- Paper (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Procedure for the production of tetrachisazoic dyes, which in the acidic form correspond to the general formula **(See formula)** where K is the remainder of a coupling component, R is a substituent and n is one of the numbers from 0 to 4, characterized in that a diazotized amine of formula **(See formula)** in which R and n have the meanings defined above and X represents the rest of an acid, in the ratio of 1: 1, in an acidic medium in the presence of coupling accelerators, in an ortho position relative to the amino group, it is subjected to coupling with 1-hydroxy-8-aminonaphthalene-3,6-disulfonic acid or its salts; Subsequently, the monozoic dye thus obtained, in an alkaline medium, in the molar ratio of 1: 1, is subjected to coupling with a diazotized amine of formula **(See formula)** in which R and n have the meanings defined above and X represents the rest of an acid; then -NHX groups are transformed into NH2 groups; the formed product is subjected to tetrazotation, and finally the tetrazotized product is subjected, in the molar ratio of approximately 1: 2, to coupling with a coupling component K-H, with K having the meaning indicated above. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722244991 DE2244991A1 (en) | 1972-09-14 | 1972-09-14 | PROCESS FOR THE MANUFACTURING OF TETRAKIS AZO DYES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES418732A1 true ES418732A1 (en) | 1976-02-16 |
Family
ID=5856249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES418732A Expired ES418732A1 (en) | 1972-09-14 | 1973-09-13 | Process for the manufacture of tetrakis-azo dyestuffs |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS4967916A (en) |
| AR (1) | AR195939A1 (en) |
| BE (1) | BE804764A (en) |
| BR (1) | BR7307069D0 (en) |
| CH (1) | CH577019A5 (en) |
| DE (1) | DE2244991A1 (en) |
| ES (1) | ES418732A1 (en) |
| FR (1) | FR2200332B1 (en) |
| GB (1) | GB1410856A (en) |
| IT (1) | IT998595B (en) |
| NL (1) | NL7312522A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5122680A (en) * | 1974-08-20 | 1976-02-23 | Matsushita Electric Ind Co Ltd | EKISHOSOSEI BUTSU |
| DE2903588A1 (en) * | 1979-01-31 | 1980-08-14 | Basf Ag | POLYAZO DYES |
| CH666046A5 (en) * | 1984-10-18 | 1988-06-30 | Sandoz Ag | MIXTURES OF WATER-SOLUBLE AZO DYES. |
| DE19514880A1 (en) * | 1995-04-22 | 1996-10-24 | Cassella Ag | Tetrakisazo compounds, their preparation and their use as dyes |
| CN106084876A (en) * | 2016-08-12 | 2016-11-09 | 上海世渊环保科技有限公司 | A kind of Direct fast light black G process for cleanly preparing and system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1901390A (en) * | 1929-10-09 | 1933-03-14 | Gen Aniline Works Inc | Black azodyestuffs and process of making same |
| CH596262A5 (en) * | 1970-12-24 | 1978-03-15 | Bayer Ag |
-
1972
- 1972-09-14 DE DE19722244991 patent/DE2244991A1/en active Pending
-
1973
- 1973-09-11 NL NL7312522A patent/NL7312522A/xx unknown
- 1973-09-12 IT IT2886073A patent/IT998595B/en active
- 1973-09-12 JP JP10228173A patent/JPS4967916A/ja active Pending
- 1973-09-12 BE BE135576A patent/BE804764A/en unknown
- 1973-09-12 AR AR25005773A patent/AR195939A1/en active
- 1973-09-12 BR BR706973A patent/BR7307069D0/en unknown
- 1973-09-13 ES ES418732A patent/ES418732A1/en not_active Expired
- 1973-09-13 CH CH1314373A patent/CH577019A5/xx not_active IP Right Cessation
- 1973-09-14 GB GB4323573A patent/GB1410856A/en not_active Expired
- 1973-09-14 FR FR7333098A patent/FR2200332B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2200332A1 (en) | 1974-04-19 |
| CH577019A5 (en) | 1976-06-30 |
| AR195939A1 (en) | 1973-11-15 |
| NL7312522A (en) | 1974-03-18 |
| FR2200332B1 (en) | 1977-08-05 |
| IT998595B (en) | 1976-02-20 |
| BE804764A (en) | 1974-03-12 |
| DE2244991A1 (en) | 1974-03-21 |
| BR7307069D0 (en) | 1974-07-18 |
| JPS4967916A (en) | 1974-07-02 |
| GB1410856A (en) | 1975-10-22 |
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