GB1449399A - Azo dyestuffs - Google Patents
Azo dyestuffsInfo
- Publication number
- GB1449399A GB1449399A GB5514374A GB5514374A GB1449399A GB 1449399 A GB1449399 A GB 1449399A GB 5514374 A GB5514374 A GB 5514374A GB 5514374 A GB5514374 A GB 5514374A GB 1449399 A GB1449399 A GB 1449399A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dyes
- cucn
- dec
- prepared
- azo dyestuffs
- 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
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
- C09B29/08—Amino benzenes
- C09B29/0805—Amino benzenes free of acid groups
- C09B29/0807—Amino benzenes free of acid groups characterised by the amino group
- C09B29/0809—Amino benzenes free of acid groups characterised by the amino group substituted amino group
- C09B29/081—Amino benzenes free of acid groups characterised by the amino group substituted amino group unsubstituted alkylamino, alkenylamino, alkynylamino, cycloalkylamino, aralkylamino or arylamino
-
- 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
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
- C09B29/08—Amino benzenes
-
- 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
- C09B43/00—Preparation of azo dyes from other azo compounds
- C09B43/40—Preparation of azo dyes from other azo compounds by substituting hetero atoms by radicals containing other hetero atoms
- C09B43/42—Preparation of azo dyes from other azo compounds by substituting hetero atoms by radicals containing other hetero atoms by substituting radicals containing hetero atoms for —CN radicals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
1449399 Monoazo dyes BAYER AG 20 Dec 1974 [21 Dec 1973] 55143/74 Heading C4P Novel monoazo dyes of formula (where R 1 to R 3 are independently C 1-4 alkyl) are prepared by diazotizing 2-amino-3,5-dinitrobenzonitrile and coupling with the appropriate amine. Alternatively the dyes may be prepared from the corresponding 2-bromo or 2-chloro-4,6- dinitro compounds by replacing the halogen with CN; the reaction is preferably carried out using CuCN or a CuCN-forming compound in an organic solvent, preferably aprotic, at 50-150‹ C. The dyes are used for colouring synthetic fibre materials, particularly polyesters and cellulose triacetate, in blue shades.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732363676 DE2363676A1 (en) | 1973-12-21 | 1973-12-21 | AZO DYES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1449399A true GB1449399A (en) | 1976-09-15 |
Family
ID=5901460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5514374A Expired GB1449399A (en) | 1973-12-21 | 1974-12-20 | Azo dyestuffs |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5096624A (en) |
| BE (1) | BE823672A (en) |
| CH (1) | CH583767A5 (en) |
| DE (1) | DE2363676A1 (en) |
| FR (1) | FR2255353B3 (en) |
| GB (1) | GB1449399A (en) |
| IT (1) | IT1027849B (en) |
| NL (1) | NL7416004A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4257944A (en) * | 1978-04-05 | 1981-03-24 | Imperial Chemical Industries Limited | Process for the manufacture of cyano azo dyes |
-
1973
- 1973-12-21 DE DE19732363676 patent/DE2363676A1/en active Pending
-
1974
- 1974-12-09 NL NL7416004A patent/NL7416004A/en unknown
- 1974-12-19 JP JP14509374A patent/JPS5096624A/ja active Pending
- 1974-12-19 IT IT3077874A patent/IT1027849B/en active
- 1974-12-19 CH CH1695274A patent/CH583767A5/xx not_active IP Right Cessation
- 1974-12-20 BE BE151776A patent/BE823672A/en unknown
- 1974-12-20 FR FR7442291A patent/FR2255353B3/fr not_active Expired
- 1974-12-20 GB GB5514374A patent/GB1449399A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4257944A (en) * | 1978-04-05 | 1981-03-24 | Imperial Chemical Industries Limited | Process for the manufacture of cyano azo dyes |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2255353A1 (en) | 1975-07-18 |
| NL7416004A (en) | 1975-06-24 |
| FR2255353B3 (en) | 1977-09-23 |
| IT1027849B (en) | 1978-12-20 |
| DE2363676A1 (en) | 1975-07-03 |
| BE823672A (en) | 1975-06-20 |
| CH583767A5 (en) | 1977-01-14 |
| JPS5096624A (en) | 1975-07-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |