US2436130A - Acyl substituted reactive methylene color couplers - Google Patents
Acyl substituted reactive methylene color couplers Download PDFInfo
- Publication number
- US2436130A US2436130A US565190A US56519044A US2436130A US 2436130 A US2436130 A US 2436130A US 565190 A US565190 A US 565190A US 56519044 A US56519044 A US 56519044A US 2436130 A US2436130 A US 2436130A
- Authority
- US
- United States
- Prior art keywords
- group
- couplers
- compounds
- color couplers
- acyl substituted
- 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 - Lifetime
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
-
- 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
Definitions
- This invention relates to color photography and particularly to color-forming or coupling
- One method of rendering the coupler non-diffusing in the emulsion layer is to incorporate in the non-coupling portion of the molecule a long chain or other complex group which hinders diffusion of the coupler. This difiusion preventing group remains in the final dye image and renders the resulting dye needlessly complex, since it generally does not contribute to the light absorption properties of the dye.
- the presence of the acyl group introduces desirable properties l-phenyl-il anilIno-S-benzoyloxypyrazole into the coupler. as will be explained more fully hereinafter.
- the acyl radical in the general Formulas 1 and 2 above may be a radical such as acetyl, propionyl, butyryl, or benzoyl, or a higher fatty acid acyl radical such as lauroyl. If the acyl group is a radical of appropriate size, the coupler may be incorporated in an emulsion layer of a multilayer material and is non-difiusing in the layer. When coupling occurs, the acyl group is split ofi and the resulting dye is a simple molecule containing no long chain or other complex group which is unnecessary in the final dye.
- the lower fatty acid acyl groups may be used in couplers which are to be incorporated in the developing solution.
- couplers containing such acyl groups might be non-diffusing and suitable for incorporation in an emulsion of a multi-layer coating by reason of other groups in the molecule.
- alkyl and aryl groups in the general Formulas 1 and 2 above may be substitued or unsubstituted.
- a benzyl group is considered a substituted alkyl radical and it is within the scope of our general formula and claims where we refer to an alkyl radical.
- the aromatic amino developing agents used with the coupler compounds of our invention include the mono-, di-, and tri-amino aryl compounds and their derivatives formed by substitution'in the amino group as well as in the ring, such as alkyl, phenylene diamines and alkyl toluene diamines. These compounds are usually employed in the salt form, such as the hydrochloride or the sulfate which is more stable than the amines themselves. Suitable compounds are diethyl p phenylenediamine hydrochloride, monomethyl-p-phenylene diamine hydrochloride, dimethyl-p-phenylene diamine sulfate, and 2- amino-5-diethylaminotoluene hydrochloride.
- the p-aminophenols and their substitution products may also be used where the amino group is unsubstituted. All of these developing agents have an unsubstituted amino group to which the oxi dation products of the developer couple with the color-forming compounds to form dye images.
- our couplers have the advantage that the activity of the methylene group with compounds other than the oxidized developer is greatly reduced.
- the couplers cannot participate in undesirable side reactions which tend to produce stain because the activity of the reactive methylene group to many of these reactions is reduced by the presence of the acyl radical.
- Our development method may be employed for the production of colored photographic images in layers of gelatin or other carrier such as collodion, organic esters of cellulose or synthetic resins.
- the carrier may be supported by a transparent medium, such as glass, cellulose ester, or a non-transparent reflecting medium, such as paper or an opaque cellulose ester.
- the emulsion may be coated as a single layer or as multiple layers on the support or in the case of a transparent support as superposed layers on both sides of the support.
- the superposed layers may be difierentially sensitized and the dyes formed therein by coupling may be bleached by an oxidizing agent, such as chromic acid to colorless soluble compounds.
- a color-forming photographic developer comprising a primary aromatic amino developing agent and a coupler compound having a formula selected from the group consisting of where R is a carboxylic acid acyl group, and X and Y are selected from the class consisting of groups in which X is selected from the class consisting of alkyl and aryl, Y is selected from the class consisting of COOC2H5 and -CONH- aryl, and X and Y together represent the atoms necessary to complete a pyrazolone ring.
- a color-forming photographic developer comprising a primary aromatic amino developing agent and a coupler compound having the formula and where R is a carboxylic acid acyl group, and X and Y are selected from the class consisting of groups in which X is selected from the class consisting of alkyl and aryl, Y is selected from the class consisting of -CO0C2H5 and --CONH- aryl, and X and Y together represent the atoms necessary to complete a pyrazolone ring.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Description
Patented Feb. 17, 1948 ACYL SUBSTITUTED REACTIV'E METHYL- ENE COLOR COUPLERS Arnold Weissberger, Charles J. Kibler, vand Henry D. Porter, Rochester, N. Y., assignors to Eastman Kodak Company, Rochester, N. Y., a corporation of New Jersey No Drawing. Application November 25, 1944, Serial No. 565,190
6 Claims.
'1 This invention relates to color photography and particularly to color-forming or coupling One method of rendering the coupler non-diffusing in the emulsion layer is to incorporate in the non-coupling portion of the molecule a long chain or other complex group which hinders diffusion of the coupler. This difiusion preventing group remains in the final dye image and renders the resulting dye needlessly complex, since it generally does not contribute to the light absorption properties of the dye.
The following examples illustrate compounds which may be used according to our invention:
compounds. A 1. onlo=on-cooclm The formation of colored photographic images by using a primary aromatic amino developing Coca agent which couples with color-forming com- E y -a ylw pounds on development has been the subject of numerous prior patents. Most of these patents GO'CH have been directed to coupler compounds which -produce on development dyes which meet the 10 Ethyl-O-benzoyl-acetoacetate requirements of subtractive color photography,
that is, dyes which are colored yellow, magenta c H or blue-green and many have been directed to methods for rendering the couplers non-difiusing in the silver halide emulsion. 000.11.
l-benzoyl-3-benzoylamino-5-benzoyloxypyrazole O C 0 CIHB l-(2'-benzothiazo1yl)-3-benzoylamino-S-benzoyloxypyrazole We have found that if an acyl group is 5 N=CNHCOCH attached to the carbon atom of the reactive 06H methylene group of couplers containing such group, or through an oxygen atom to a carbon C: H atom adjacent to the reactive methenyl group of ococHl the enolic form of such couplers, compounds 1 pheny1 3 mty1amiwmcetoxypymmm result which have desirable properties for purposes of color photography. The coupling reac- N=CNHC@H tion is a vigorous one which splits 03 the acyl 0.13m group and presumably forms the same dye as C: H would be produced from the coupler not containing the acyl group. The presence of the acyl group. however, introduces desirable properties l-phenyl-il anilIno-S-benzoyloxypyrazole into the coupler. as will be explained more fully hereinafter. 1. COHICOCHCONHCJHJ The couplers which we propose to use have 0 0cm one of the following general formulas: g h t t flld 1 xc=cn-Y 1 8. CIHICOCHCONHCOHI m or 0mm X--CO(|JHY mDlbenroyl-wetanilide a olmcocncooolm where X=alkyl or aryl. Y=--COOC2H5 or OCH CONH-aryl. or X and Y together represent the atoms necessary to complete a pyrazolone ring. so "bemylmwmww l0. CHICOCHCOOClHI Ethyl dlacetyl-ucetate ll. C;H CH COCHCO0C|H O CH:
Ethyl -(phenylacetyl) acetoacetate The acyl radical in the general Formulas 1 and 2 above may be a radical such as acetyl, propionyl, butyryl, or benzoyl, or a higher fatty acid acyl radical such as lauroyl. If the acyl group is a radical of appropriate size, the coupler may be incorporated in an emulsion layer of a multilayer material and is non-difiusing in the layer. When coupling occurs, the acyl group is split ofi and the resulting dye is a simple molecule containing no long chain or other complex group which is unnecessary in the final dye. Obviously, the lower fatty acid acyl groups may be used in couplers which are to be incorporated in the developing solution. In certain cases, however, couplers containing such acyl groups might be non-diffusing and suitable for incorporation in an emulsion of a multi-layer coating by reason of other groups in the molecule.
The alkyl and aryl groups in the general Formulas 1 and 2 above may be substitued or unsubstituted. A benzyl group is considered a substituted alkyl radical and it is within the scope of our general formula and claims where we refer to an alkyl radical.
The following example illustrates the use of one of our couplers in the developing solution:
A. 2-amino-5-diethyl-aminotoluene HCl grams 2 Sodium sulfite do 5 Sodium carbonate do 30 Water to -liter 1 B. Ethyl-O-acetylacetoacetate grams 2 Sodium hydroxide solution) cc 10 For use B is added to A.
The aromatic amino developing agents used with the coupler compounds of our invention include the mono-, di-, and tri-amino aryl compounds and their derivatives formed by substitution'in the amino group as well as in the ring, such as alkyl, phenylene diamines and alkyl toluene diamines. These compounds are usually employed in the salt form, such as the hydrochloride or the sulfate which is more stable than the amines themselves. Suitable compounds are diethyl p phenylenediamine hydrochloride, monomethyl-p-phenylene diamine hydrochloride, dimethyl-p-phenylene diamine sulfate, and 2- amino-5-diethylaminotoluene hydrochloride. The p-aminophenols and their substitution products may also be used where the amino group is unsubstituted. All of these developing agents have an unsubstituted amino group to which the oxi dation products of the developer couple with the color-forming compounds to form dye images.
In addition to the advantage of having a diffusion-preventing group in a portion of the molecule which is split on during formation of the dye image, our couplers have the advantage that the activity of the methylene group with compounds other than the oxidized developer is greatly reduced. The couplers cannot participate in undesirable side reactions which tend to produce stain because the activity of the reactive methylene group to many of these reactions is reduced by the presence of the acyl radical. The
color-forming reaction,.. however, is more powerful than many of these side reactions and immediately splits oil the acyl group and forms a coupled dye image.
Our development method may be employed for the production of colored photographic images in layers of gelatin or other carrier such as collodion, organic esters of cellulose or synthetic resins. The carrier may be supported by a transparent medium, such as glass, cellulose ester, or a non-transparent reflecting medium, such as paper or an opaque cellulose ester. The emulsion may be coated as a single layer or as multiple layers on the support or in the case of a transparent support as superposed layers on both sides of the support. The superposed layers may be difierentially sensitized and the dyes formed therein by coupling may be bleached by an oxidizing agent, such as chromic acid to colorless soluble compounds. The destruction of the dye in this way does not destroy the silver image and the silver may be resensitized to develop a color a number of times, thus permitting the formation of neutral colored images in superposed layers as described for example in Mannes and Godowsky U. S. Patent 2,113,329. Colored images may also be formed in the manner described in Mannes and Godowsky and Wilder U. S. Patent 2,252,718.
The examples and compounds set forth in the present specification are illustrative only and it will be understood that our invention is limited only by the scope of the appended claims.
We claim:
1. A color-forming photographic developer comprising a primary aromatic amino developing agent and a coupler compound having a formula selected from the group consisting of where R is a carboxylic acid acyl group, and X and Y are selected from the class consisting of groups in which X is selected from the class consisting of alkyl and aryl, Y is selected from the class consisting of COOC2H5 and -CONH- aryl, and X and Y together represent the atoms necessary to complete a pyrazolone ring.
2. A color-forming photographic developer comprising a primary aromatic amino developing agent and a coupler compound having the formula and where R is a carboxylic acid acyl group, and X and Y are selected from the class consisting of groups in which X is selected from the class consisting of alkyl and aryl, Y is selected from the class consisting of -CO0C2H5 and --CONH- aryl, and X and Y together represent the atoms necessary to complete a pyrazolone ring.
4. The method of producing a colored photographic image in a gelatino-silver halide emul- 1 and sion layer which comprises exposing the layer and developing it with a primary aromatic amino developing agent in the presence of a. coupler compound having the formula:
CHaC=CHC O OCzHg C OCH:
6. A photographic emulsion for forming colored images comprising a water-permeable, colloidal carrier containing a sensitive silver halide and a coupler compound having a formula selected from the group consisting of and X-C=CH-Y where R is a carboxylic acid acyl group, and X and Y are selected from the class consisting of groups in which X is selected from the class consisting of alkyl and aryl, Y is selected from the class consisting of COOC2H5 and -CONH- aryl, and X and Y together represent the atoms necessary to complete a pyrazolone ring.
ARNOLD WEISSBERGER. CHARLES J. KIBLER. HENRY D. PORTER.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 2,120,741 Graenacher et al. June 14, 1938 2,213,986 Kendall et al Sept. 10, 1940 2,294,909 Jennings Sept. 8, 1942 2,340,763 McQueen Feb. 1, 1944
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US565190A US2436130A (en) | 1944-11-25 | 1944-11-25 | Acyl substituted reactive methylene color couplers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US565190A US2436130A (en) | 1944-11-25 | 1944-11-25 | Acyl substituted reactive methylene color couplers |
Publications (1)
Publication Number | Publication Date |
---|---|
US2436130A true US2436130A (en) | 1948-02-17 |
Family
ID=24257564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US565190A Expired - Lifetime US2436130A (en) | 1944-11-25 | 1944-11-25 | Acyl substituted reactive methylene color couplers |
Country Status (1)
Country | Link |
---|---|
US (1) | US2436130A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2538168A (en) * | 1951-01-16 | Production of aromatic acyl-aceto | ||
US2575182A (en) * | 1946-08-21 | 1951-11-13 | Du Pont | Photographic silver halide emulsions and developers containing 5-acyloxypyrazole color formers |
US2706685A (en) * | 1952-12-04 | 1955-04-19 | Eastman Kodak Co | 3-acylamido-5-(m-sulfobenzoyloxy) pyrazole coupler compounds |
US2864852A (en) * | 1955-02-02 | 1958-12-16 | Lilly Co Eli | Acylated keto esters and keto nitriles |
US2937204A (en) * | 1957-11-25 | 1960-05-17 | Dow Chemical Co | Nu-alkanoyl dinitrobenzamides |
US3311476A (en) * | 1962-12-26 | 1967-03-28 | Eastman Kodak Co | Two-equivalent couplers for color photography |
US3506389A (en) * | 1963-08-01 | 1970-04-14 | Oreal | Hair dyeing with couplers and a 1-amino-4-substituted-alkylaminobenzene |
US3790388A (en) * | 1971-09-13 | 1974-02-05 | Fuji Photo Film Co Ltd | Direct positive color photographic materials |
US4275148A (en) * | 1977-12-09 | 1981-06-23 | Konishiroku Photo Industry Co., Ltd. | Light-sensitive silver halide color photographic materials |
US4278750A (en) * | 1979-09-06 | 1981-07-14 | Eastman Kodak Company | Novel electron donor precursors and photographic elements containing them |
US4283472A (en) * | 1980-02-26 | 1981-08-11 | Eastman Kodak Company | Silver halide elements containing blocked pyrazolone magenta dye-forming couplers |
US4310618A (en) * | 1980-05-30 | 1982-01-12 | Eastman Kodak Company | Silver halide photographic material and process utilizing blocked dye-forming couplers |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2120741A (en) * | 1935-08-17 | 1938-06-14 | Soc Of Chemical Ind | Derivatives of dyestuffs containing hydroxyl groups and process of making same |
US2213986A (en) * | 1938-04-08 | 1940-09-10 | Ilford Ltd | Production of colored photographic images |
US2294909A (en) * | 1939-02-13 | 1942-09-08 | Du Pont | Chemical process and composition |
US2340763A (en) * | 1941-04-17 | 1944-02-01 | Du Pont | Photographic composition and process |
-
1944
- 1944-11-25 US US565190A patent/US2436130A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2120741A (en) * | 1935-08-17 | 1938-06-14 | Soc Of Chemical Ind | Derivatives of dyestuffs containing hydroxyl groups and process of making same |
US2213986A (en) * | 1938-04-08 | 1940-09-10 | Ilford Ltd | Production of colored photographic images |
US2294909A (en) * | 1939-02-13 | 1942-09-08 | Du Pont | Chemical process and composition |
US2340763A (en) * | 1941-04-17 | 1944-02-01 | Du Pont | Photographic composition and process |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2538168A (en) * | 1951-01-16 | Production of aromatic acyl-aceto | ||
US2575182A (en) * | 1946-08-21 | 1951-11-13 | Du Pont | Photographic silver halide emulsions and developers containing 5-acyloxypyrazole color formers |
US2706685A (en) * | 1952-12-04 | 1955-04-19 | Eastman Kodak Co | 3-acylamido-5-(m-sulfobenzoyloxy) pyrazole coupler compounds |
US2864852A (en) * | 1955-02-02 | 1958-12-16 | Lilly Co Eli | Acylated keto esters and keto nitriles |
US2937204A (en) * | 1957-11-25 | 1960-05-17 | Dow Chemical Co | Nu-alkanoyl dinitrobenzamides |
US3311476A (en) * | 1962-12-26 | 1967-03-28 | Eastman Kodak Co | Two-equivalent couplers for color photography |
US3506389A (en) * | 1963-08-01 | 1970-04-14 | Oreal | Hair dyeing with couplers and a 1-amino-4-substituted-alkylaminobenzene |
US3790388A (en) * | 1971-09-13 | 1974-02-05 | Fuji Photo Film Co Ltd | Direct positive color photographic materials |
US4275148A (en) * | 1977-12-09 | 1981-06-23 | Konishiroku Photo Industry Co., Ltd. | Light-sensitive silver halide color photographic materials |
US4278750A (en) * | 1979-09-06 | 1981-07-14 | Eastman Kodak Company | Novel electron donor precursors and photographic elements containing them |
US4283472A (en) * | 1980-02-26 | 1981-08-11 | Eastman Kodak Company | Silver halide elements containing blocked pyrazolone magenta dye-forming couplers |
US4310618A (en) * | 1980-05-30 | 1982-01-12 | Eastman Kodak Company | Silver halide photographic material and process utilizing blocked dye-forming couplers |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2369929A (en) | Acylamino phenol couplers | |
US2343703A (en) | Pyrazolone coupler for color photography | |
US2367531A (en) | Acylaminophenol photographic couplers | |
US2311082A (en) | Pyrazolone coupler for color photography | |
US2369489A (en) | Acylated amino pyrazolone couplers | |
US3432300A (en) | 6-hydroxy chromans used as stabilizing agents in a color photographic element | |
US2108602A (en) | Photographic color-forming compounds | |
US3926631A (en) | Silver halide photographic light-sensitive material | |
US2436130A (en) | Acyl substituted reactive methylene color couplers | |
US4178183A (en) | Thiazolyl coupler compositions and photographic elements suited to forming integral sound tracks | |
US3573050A (en) | Color photographic layers comprising non-diffusible 5-hydroxycoumarans as stabilizing compounds | |
US3128182A (en) | Silver halide solvent containing developers and process | |
US3935016A (en) | Silver halide color photographic materials containing 3-anilino-5-pyrazolone couplers | |
US2434272A (en) | Color photography with azosubstituted couplers | |
US2403721A (en) | Preventing color fog in photographic material | |
US3620745A (en) | Color photographic silver halide emulsions of different developing speed one layer having a dir coupler | |
US2362598A (en) | Color forming compounds containing sulphonamide groups | |
US2453661A (en) | Colored couplers | |
EP0529737B1 (en) | Photographic element with 2-equivalent magenta dye forming coupler and filter dye | |
US2439098A (en) | Alkoxy pyrazolone couplers | |
US2353205A (en) | Color-forming compound containing sulphonamide groups | |
US2113330A (en) | Color-forming developers | |
US3419390A (en) | Elements and developers for color photography utilizing phenolic couplers containingan aminoalkyl group on the coupling position | |
US2411951A (en) | 4,4'-bis (pyrazolone) couplers for color photography | |
JPH01101549A (en) | Photographic recording material containing pigment image forming coupler compound |