GB576890A - Improvements in or relating to colour photography - Google Patents
Improvements in or relating to colour photographyInfo
- Publication number
- GB576890A GB576890A GB908644A GB908644A GB576890A GB 576890 A GB576890 A GB 576890A GB 908644 A GB908644 A GB 908644A GB 908644 A GB908644 A GB 908644A GB 576890 A GB576890 A GB 576890A
- Authority
- GB
- United Kingdom
- Prior art keywords
- isoxazolone
- group
- compounds
- amino
- prepared
- 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
-
- 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
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
- G03C7/32—Colour coupling substances
- G03C7/36—Couplers containing compounds with active methylene groups
- G03C7/38—Couplers containing compounds with active methylene groups in rings
- G03C7/381—Heterocyclic compounds
- G03C7/3815—Heterocyclic compounds with one heterocyclic ring
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Abstract
Compounds of the formula <FORM:0576890/IV/1> wherein R is an aralkyl or aryl group which may be substituted or unsubstituted are prepared by reacting an isothiocyanate containing the group R with sodio-acetoacetic ester and treating the product with hydroxylamine. Compounds specified are 3-phenylamino-5-isoxazolone, 3-p-ethoxyphenylamino-5-isoxazolone, 3 - p - chlorophenylamino - 5 - isoxazolone, 3 - a - naphthylamino - 5 - isoxazolone, 3 - benzyl - amino - 5 - isoxazolone, and 3 : 31 - diphenyl - amino-bis-5-isoxazolone. Acyl derivatives, e.g. the acetyl and p-toluenesulphonyl derivatives, of compounds of the general formula are prepared by reaction with the appropriate acid chloride or anhydride in pyridine solution. Specifications 460,599, 551,116, [Group XX], 551,117, 554,302 and 556,858, [Group XX], are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB908644A GB576890A (en) | 1944-05-12 | 1944-05-12 | Improvements in or relating to colour photography |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB908644A GB576890A (en) | 1944-05-12 | 1944-05-12 | Improvements in or relating to colour photography |
Publications (1)
Publication Number | Publication Date |
---|---|
GB576890A true GB576890A (en) | 1946-04-25 |
Family
ID=9865081
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB908644A Expired GB576890A (en) | 1944-05-12 | 1944-05-12 | Improvements in or relating to colour photography |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB576890A (en) |
-
1944
- 1944-05-12 GB GB908644A patent/GB576890A/en not_active Expired
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