US2865751A - 1-alkyl-3-acylamido-5-pyrazolone couplers for color photography - Google Patents

1-alkyl-3-acylamido-5-pyrazolone couplers for color photography Download PDF

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Publication number
US2865751A
US2865751A US610639A US61063956A US2865751A US 2865751 A US2865751 A US 2865751A US 610639 A US610639 A US 610639A US 61063956 A US61063956 A US 61063956A US 2865751 A US2865751 A US 2865751A
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United States
Prior art keywords
pyrazolone
couplers
coupler
alkyl
color
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Expired - Lifetime
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US610639A
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English (en)
Inventor
Feniak George
Warren A Reckhow
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Eastman Kodak Co
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Eastman Kodak Co
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Priority to BE560859D priority Critical patent/BE560859A/xx
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to US610639A priority patent/US2865751A/en
Priority to GB24403/57A priority patent/GB865720A/en
Priority to FR1206640D priority patent/FR1206640A/fr
Application granted granted Critical
Publication of US2865751A publication Critical patent/US2865751A/en
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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C7/00Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/32Colour coupling substances
    • G03C7/36Couplers containing compounds with active methylene groups
    • G03C7/38Couplers containing compounds with active methylene groups in rings
    • G03C7/384Couplers containing compounds with active methylene groups in rings in pyrazolone rings

Definitions

  • This invention relates to 1-alkyl-3-acylamido 5-pyrazolone couplers for color photography and more particularly to such couplers in which the 3-acylamido gronp is a 3-phenoxyacylamido group and which substituents in the 1 and 3-positions of the pyrazolone nucleus confer special properties upon the coupler compounds.
  • S-acyIamidQ-S-pyra-Zolone couplers for color photography have previously been described includingalimited number of 1-alkyl-3-acylamido-5-pyrazolones.
  • the pyrazolone coupler compounds of the present invention are distinguished in containing a particular combination of alkyl and acylamido radicals in the 1 and 3.-po.sitions of the pyrazolone nucleus with the result that-dyes obtained from the couplers in the color development proc- C Ha-N 2 Clix-P g 2,865,751 Patented p p!
  • R represents an alkyl group of from 1 to 12 carbon a om Rire e e ts a pn s a l p the benzene series such as phenyl and substituted phenyl, for example, 2,4-di-tert.-amylphenyl, 2,4-di-n-amylphenyl, n represents a positive integer of from Ito. 2, and n' represents a positive integer of from 1 to 3, R represents a hydrogen atom or lower alkyl group and m represents a positive integer from 1 to 2.
  • Couplers of the invention having the above generalstructure are as follows: i
  • the A max. values indicated represent the wavelength of maximum light absorption of dyes made by oxidative coupling of each coupler with the developing agent 2- amino-S-diethylamino toluene hydrochloride.
  • the coupler compounds of the invention can be prepared in the following manner: 1
  • the product was obtained from petroleum ether as a white powder. Yield 2.5 g. M. P. 78-80 C.
  • the diacylatedzcomp'ound was hydrolyzed with 2 equivalents of sodium hydroxideirr aqueous :ethanol. at room temperature for 30 minutes.
  • the reaction mixture was acidified with acetic acid, the solid product was filtered off, recrystallized from ethanol and then benzene (M. P. 78-80 C.).
  • Coupler No; 7 Coupler-Twas. prepared.-in. the same manner as was coupler 4 except that 2,4-di-n-amylphenoxyacetyl chloride was used implace of.2,4-di tert.-amylphenoxyacetylchloride. It. melted at 59-61? 7 Anal. calcd. for C5 H N O C, 73.1; H, 10.2; N,..718. Found: 0.73.4; l-l,10.1;N,'7.7.
  • R represents "an; alkyl' group of fr'om'l to. 30 carbonatoms. and one of the groups X and Y represents a hydrogen atom" and' the other represents an acylamido group.
  • A'particular groupofth'ese benzoylacet-o-allroxyanilide couplers efiicacious for use with the above couplers ofthe' invention have the above general formula:.wherein R represents "an 'alkyl' group of from about :1 to .20 carbon. atoms andone of the" groups X' a1'1d' Y' represents a .hy, drogen'" atom" and 'the' other represents :the 'group wherein R represents .eith'era hydrogenatom or analkyl group. of vfromnabout 1 tot4 carbon atoms.
  • the coupler compounds of the invention find usage in a wide variety of photographic color processes particularly wherein the couplers are dispersed in an emulsion layer such as a gelatino silver halide emulsion layer by'means of coupler solvents including cellulose esters, natural and synthetic resins and organic crystalloidal materials having a'hoiling point above .about170 C., as describedin the Mannes et al. U. S. Patent 2,304,940, granted December 15, 1942, and the Jelley et al. U. S. Patent 2,322,027, granted June 15, 1943.
  • an emulsion layer such as a gelatino silver halide emulsion layer by'means of coupler solvents including cellulose esters, natural and synthetic resins and organic crystalloidal materials having a'hoiling point above .about170 C.
  • the optimum quantity of coupler to use in the emulsion layer can be determined by simple experiment and will depend somewhat upon the coupling activity of the particular coupler, the silver halide content of the emulsion layer, the particular process in which I the emulsion is to be used and other factors well known in the art of emulsion making.
  • the couplers are preferably present in a green-sensitive emulsion layer and the mentioned benzoylacet-o-alkoxyanilide couplers may be present in-the overlying blue-sensitive emulsion layer, a yellow filter layer intervening.
  • a cyan coupler may then be present in the lower red-sensitive emulsion layer adjacent to the green-sensitive emulsion layer.
  • a suitable color developing solution for this purpose is as follows:
  • any color forming developer containing a primary amino group may be used.
  • developers having two primary amino groups as well as those having one of the amino groups substituted or having substituents in the ring such as alkyl phenylenediamines and alkyl toluylene di-- amines.
  • substituents in the ring such as alkyl phenylenediamines and alkyl toluylene di-- amines.
  • These compounds are usualy used in the salt formsuch as the hydrochloride or the sulfate which are more stable than the amines themselves.
  • Suitable compounds are diethyl-p phenylenediamine hydrochloride, monomethyl-p-phenylenediamine hydrochloride, dimethylp-phenylenediamine hydrochloride and Z-amino-S-diethylaminotoluene hydrochloride.
  • the p-amino phenols and their substitution products may also be used where the amino group is unsubstituted. All of these developers have an unsubstituted amino group which enables the oxidation products of the developer to couple with the color forming compounds to form a dye image.
  • the N- alkylsultonamido alkyl-p-phenylenediamines of U. S. Patent 2,193,015 are particularly useful as color-forming developing agents.
  • the development process may be employed for the production of colored photographic images in layers of gelatin or other carriers, such as collodion, organic esters ofcellulose, or synthetic resins.
  • the carrier may be supported by a transparent medium such as glass, a cellulose ester or a nontransparent reflecting medium such as paperor an opaque cellulose ester.
  • the emulsion may be coatedas a single layer on the support or as superposed layers on one or both sides of the support.
  • the silver halide component of the emulsion layers is not especially critical and may be, for example, silver bromoiodide, silver bromide or silver chloride, etc., depending upon the results desired.
  • the emulsions which are developed in the presence of the novel couplers may consist of single-layer or differentially sensitized multilayer films.
  • a multilayer color film comprising a support having thereon the silver halide emulsion layer of claim 1 sensitiveto green light and a silver halide emulsion layer sensitive to blue light containing a coupler compound having the general formula thereon the silver halide emulsion layer of claim 1 sensitive to green light and a silver halide emulsion sensitive to blue light containing a coupler compound having the general formula x Y 6-00 onto 01mg wherein R represents an alkyl group of from 1 to 20 carbon atoms and one of the groups X and Y represents a hydrogen atom and the other represents the group a hydrogen atom and an alk bon atoms.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
US610639A 1956-09-18 1956-09-18 1-alkyl-3-acylamido-5-pyrazolone couplers for color photography Expired - Lifetime US2865751A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE560859D BE560859A (en)van) 1956-09-18
US610639A US2865751A (en) 1956-09-18 1956-09-18 1-alkyl-3-acylamido-5-pyrazolone couplers for color photography
GB24403/57A GB865720A (en) 1956-09-18 1957-08-01 Improvements in photographic colour couplers
FR1206640D FR1206640A (fr) 1956-09-18 1957-09-17 Procédé de photographie en couleurs et nouveaux produits pour sa mise en oeuvre

Applications Claiming Priority (1)

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US610639A US2865751A (en) 1956-09-18 1956-09-18 1-alkyl-3-acylamido-5-pyrazolone couplers for color photography

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US2865751A true US2865751A (en) 1958-12-23

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US (1) US2865751A (en)van)
BE (1) BE560859A (en)van)
FR (1) FR1206640A (en)van)
GB (1) GB865720A (en)van)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1147483B (de) * 1961-09-28 1963-04-18 Ferrania Spa Photographisches Mehrschichtenmaterial mit Farbkomponenten fuer die farbige Entwicklung und Verfahren zu dessen Herstellung
US3110717A (en) * 1959-08-07 1963-11-12 Ilford Ltd Pyrazolone color couplers for color photography
US4138258A (en) * 1974-08-28 1979-02-06 Fuji Photo Film Co., Ltd. Multi-layered color photographic materials
US7183431B1 (en) * 2005-11-29 2007-02-27 General Electric Company Dihydroxy aromatic compounds and methods for preparation
US20070123683A1 (en) * 2005-11-29 2007-05-31 Nagarajan Arumugam Polymers, polymer compositions and method of preparation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2511231A (en) * 1949-03-26 1950-06-13 Eastman Kodak Co 1-cyanophenyl-3-acylamino-5-pyrazolone couplers for color photography
US2600788A (en) * 1949-06-07 1952-06-17 Eastman Kodak Co Halogen-substituted pyrazolone couplers for color photography
FR1070244A (fr) * 1952-01-31 1954-07-20 Kodak Pathe Procédé de préparation de 4-arylazo-5-pyrazolones utilisables notamment comme coupleurs colorés pour la photographie en couleurs
US2721798A (en) * 1953-09-02 1955-10-25 Eastman Kodak Co Compounds containing an isophthalate group useful in photography

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2511231A (en) * 1949-03-26 1950-06-13 Eastman Kodak Co 1-cyanophenyl-3-acylamino-5-pyrazolone couplers for color photography
US2600788A (en) * 1949-06-07 1952-06-17 Eastman Kodak Co Halogen-substituted pyrazolone couplers for color photography
FR1070244A (fr) * 1952-01-31 1954-07-20 Kodak Pathe Procédé de préparation de 4-arylazo-5-pyrazolones utilisables notamment comme coupleurs colorés pour la photographie en couleurs
US2721798A (en) * 1953-09-02 1955-10-25 Eastman Kodak Co Compounds containing an isophthalate group useful in photography

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3110717A (en) * 1959-08-07 1963-11-12 Ilford Ltd Pyrazolone color couplers for color photography
DE1147483B (de) * 1961-09-28 1963-04-18 Ferrania Spa Photographisches Mehrschichtenmaterial mit Farbkomponenten fuer die farbige Entwicklung und Verfahren zu dessen Herstellung
US4138258A (en) * 1974-08-28 1979-02-06 Fuji Photo Film Co., Ltd. Multi-layered color photographic materials
US7183431B1 (en) * 2005-11-29 2007-02-27 General Electric Company Dihydroxy aromatic compounds and methods for preparation
US20070123683A1 (en) * 2005-11-29 2007-05-31 Nagarajan Arumugam Polymers, polymer compositions and method of preparation
US7375177B2 (en) 2005-11-29 2008-05-20 General Electric Company Polymers, polymer compositions and method of preparation

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Publication number Publication date
GB865720A (en) 1961-04-19
FR1206640A (fr) 1960-02-10
BE560859A (en)van)

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