GB1426689A - Preparation of diazonium salts and azo dyes - Google Patents
Preparation of diazonium salts and azo dyesInfo
- Publication number
- GB1426689A GB1426689A GB1218774A GB1218774A GB1426689A GB 1426689 A GB1426689 A GB 1426689A GB 1218774 A GB1218774 A GB 1218774A GB 1218774 A GB1218774 A GB 1218774A GB 1426689 A GB1426689 A GB 1426689A
- Authority
- GB
- United Kingdom
- Prior art keywords
- azo
- dyes
- quinone
- dye
- preparation
- 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
- C09B41/00—Special methods of performing the coupling reaction
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
- G03C8/02—Photosensitive materials characterised by the image-forming section
- G03C8/08—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of organic compounds
- G03C8/10—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of organic compounds of dyes or their precursors
- G03C8/12—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of organic compounds of dyes or their precursors characterised by the releasing mechanism
- G03C8/14—Oxidation of the chromogenic substances
- G03C8/16—Oxidation of the chromogenic substances initially diffusible in alkaline environment
- G03C8/18—Dye developers
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1426689 Azo dyes containing quinone groups FUJI PHOTO FILM CO Ltd 19 March 1974 [19 March 1973] 12187/74 Heading C4P [Also in Divisions C2 and G2] An azo dye containing a quinone group in its molecule is obtained by preparing a diazonium salt solution by reacting an aromatic carbocyclic primary amine or a salt thereof containing as a substituent in its ring a hydroquinone residue with a diazotizing agent and an oxidizing agent, and reacting the diazonium salt with an azo coupler. Specified couplers are phenols, aromatic amines, heterocyclic aromatic compounds containing hydroxyl or amino groups and aliphatic or alicyclic activated methylene couplers. Examples are given for the production of such dyes. They are useful as intermediates in the preparation of dye developers by the reduction of the quinone portion of said dyes with a reducing agent such as hydrogen over a catalyst or N,N-dialkylhydroxylamine. Both the azo dye and the dye developers are useful in colour photography.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3159273A JPS49118723A (en) | 1973-03-19 | 1973-03-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1426689A true GB1426689A (en) | 1976-03-03 |
Family
ID=12335446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1218774A Expired GB1426689A (en) | 1973-03-19 | 1974-03-19 | Preparation of diazonium salts and azo dyes |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS49118723A (en) |
| DE (1) | DE2413223A1 (en) |
| GB (1) | GB1426689A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5258738A (en) * | 1975-11-10 | 1977-05-14 | Yamagishi Fukujirou | Method of manufacturing mineral adhesive |
| DE2962762D1 (en) * | 1978-03-22 | 1982-07-01 | Agfa Gevaert Nv | Photographic material suited for use in diffusion transfer photography and method of diffusion transfer photography using such material |
| JPH11512440A (en) * | 1995-09-15 | 1999-10-26 | スクリプトジェン・ファーマスーティカルズ，インコーポレイテッド | Arylhydrazone derivatives useful as antibacterial agents |
| JP4719477B2 (en) * | 2005-02-04 | 2011-07-06 | 花王株式会社 | Hair dye composition |
-
1973
- 1973-03-19 JP JP3159273A patent/JPS49118723A/ja active Pending
-
1974
- 1974-03-19 GB GB1218774A patent/GB1426689A/en not_active Expired
- 1974-03-19 DE DE19742413223 patent/DE2413223A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS49118723A (en) | 1974-11-13 |
| DE2413223A1 (en) | 1974-09-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |