GB941666A - Coupler for colour photography - Google Patents
Coupler for colour photographyInfo
- Publication number
- GB941666A GB941666A GB12340/60A GB1234060A GB941666A GB 941666 A GB941666 A GB 941666A GB 12340/60 A GB12340/60 A GB 12340/60A GB 1234060 A GB1234060 A GB 1234060A GB 941666 A GB941666 A GB 941666A
- Authority
- GB
- United Kingdom
- Prior art keywords
- give
- hydroxy
- acetamidophenyl
- nitrophenyl
- ethyl
- 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
- G03C7/34—Couplers containing phenols
- G03C7/344—Naphtholic couplers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
1-Hydroxy-N-(2-O-acetamidophenyl-ethyl) - 2 -naphthamide is prepared by acetylating b -phenethylamine with acetic anhydride, nitrating the product and separating the o- and p-nitro compounds, de-acylating the o-nitro derivative to give the amine and reacting this with phenyl 1-hydroxy-2-naphthoate to give 1-hydroxy-N-(2-O-nitrophenyl-ethyl)-2-naphthamide, reducing the nitro group to an amine and acylating the product with acetic anhydride. An alternative preparation is to prepare ethyl o-nitrophenyl-pyruvate by reacting diethyl oxalate with o-nitrotoluene and hydrolyse this to the free acid, which is then reacted with hydroxylamine hydrochloride, made basic with caustic soda and heated with sulphuric acid to give o-nitrophenyl-acetonitrile. The nitro group is then hydrogenated and the amino group acylated to give o-acetamidophenyl-acetonitrile. Hydrogenation using a nickel catalyst then gives o-acetamidophenyl-ethylamine which is condensed with phenyl 1-hydroxy-2-naphthoate to give the required product. Specifications 447,092, 507,841 and 664,580 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US805206A US3002836A (en) | 1959-04-09 | 1959-04-09 | Cyan color former for color photography |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB941666A true GB941666A (en) | 1963-11-13 |
Family
ID=25190946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12340/60A Expired GB941666A (en) | 1959-04-09 | 1960-04-07 | Coupler for colour photography |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3002836A (en) |
| DE (1) | DE1096196B (en) |
| GB (1) | GB941666A (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3418121A (en) * | 1964-11-11 | 1968-12-24 | Fuji Photo Film Co Ltd | Photographic developer composition containing 2-(o-propionamido-beta-phenylethyl) - 1 - hydroxynaphthamide as a color former |
| FR1548223A (en) * | 1966-12-28 | 1968-10-21 | ||
| US4064132A (en) * | 1975-10-08 | 1977-12-20 | Janssen Pharmaceutica N.V. | Aroyl-substituted phenylacetamide derivatives |
| JPS5933903B2 (en) * | 1979-02-13 | 1984-08-18 | 富士写真フイルム株式会社 | New cyan coupler |
| JPS56114946A (en) * | 1980-02-15 | 1981-09-09 | Konishiroku Photo Ind Co Ltd | Silver halide photographic sensitive material |
| US4434225A (en) | 1982-02-24 | 1984-02-28 | Konishiroku Photo Industry Co., Ltd. | Light-sensitive silver halide color photographic material |
| US5183729A (en) * | 1990-03-12 | 1993-02-02 | Fuji Photo Film Co., Ltd. | Method for forming color image |
| WO1992011575A1 (en) * | 1990-12-19 | 1992-07-09 | Eastman Kodak Company | Azoaniline masking couplers for photographic materials |
| EP0574090A1 (en) | 1992-06-12 | 1993-12-15 | Eastman Kodak Company | One equivalent couplers and low pKa release dyes |
| EP0684515A1 (en) | 1994-05-27 | 1995-11-29 | Eastman Kodak Company | Photographic element and process incorporating a high dye-yield image coupler providing improved granularity |
| DE69516332T2 (en) | 1994-06-08 | 2000-11-30 | Eastman Kodak Co., Rochester | Color photographic element containing new epoxy scavengers for remaining magenta couplers |
| JP3240342B2 (en) * | 1994-06-09 | 2001-12-17 | コニカ株式会社 | Silver halide color photographic materials |
| JPH08101477A (en) | 1994-08-01 | 1996-04-16 | Eastman Kodak Co | Coating composition for aqueous photograph |
| DE69635297D1 (en) | 1995-12-04 | 2006-03-02 | Konishiroku Photo Ind | Light and heat sensitive recording material and recording method using this material |
| US5681691A (en) | 1995-12-11 | 1997-10-28 | Eastman Kodak Company | Photographic element containing an improved pyrazolotriazole coupler |
| US5985532A (en) | 1995-12-11 | 1999-11-16 | Eastman Kodak Company | Photographic element containing an improved pyrozolotriazole coupler |
| US20130052594A1 (en) | 2011-08-31 | 2013-02-28 | Diane M. Carroll-Yacoby | Motion picture films to provide archival images |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2589004A (en) * | 1948-11-04 | 1952-03-11 | Eastman Kodak Co | Process for producing couplers from bi-functional amines |
-
1959
- 1959-04-09 US US805206A patent/US3002836A/en not_active Expired - Lifetime
-
1960
- 1960-03-29 DE DEE19114A patent/DE1096196B/en active Pending
- 1960-04-07 GB GB12340/60A patent/GB941666A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3002836A (en) | 1961-10-03 |
| DE1096196B (en) | 1960-12-29 |
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