GB684166A - Improvements in or relating to the sensitization and supersensitization of photographic emulsions - Google Patents

Improvements in or relating to the sensitization and supersensitization of photographic emulsions

Info

Publication number
GB684166A
GB684166A GB2501/50A GB250150A GB684166A GB 684166 A GB684166 A GB 684166A GB 2501/50 A GB2501/50 A GB 2501/50A GB 250150 A GB250150 A GB 250150A GB 684166 A GB684166 A GB 684166A
Authority
GB
United Kingdom
Prior art keywords
methylbenzthiazolylidene
prepared
acetamide
benzamide
general formula
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
Application number
GB2501/50A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gevaert Photo Producten NV
Original Assignee
Gevaert Photo Producten NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gevaert Photo Producten NV filed Critical Gevaert Photo Producten NV
Publication of GB684166A publication Critical patent/GB684166A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/72—Nitrogen atoms
    • C07D213/75—Amino or imino radicals, acylated by carboxylic or carbonic acids, or by sulfur or nitrogen analogues thereof, e.g. carbamates
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D235/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings
    • C07D235/02—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
    • C07D235/04—Benzimidazoles; Hydrogenated benzimidazoles
    • C07D235/24—Benzimidazoles; Hydrogenated benzimidazoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 2
    • C07D235/30—Nitrogen atoms not forming part of a nitro radical
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
    • C07D263/52—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings condensed with carbocyclic rings or ring systems
    • C07D263/62—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings condensed with carbocyclic rings or ring systems having two or more ring systems containing condensed 1,3-oxazole rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
    • C07D277/60—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings condensed with carbocyclic rings or ring systems
    • C07D277/62—Benzothiazoles
    • C07D277/68—Benzothiazoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 2
    • C07D277/82—Nitrogen atoms
    • 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
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/10—Organic substances
    • 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
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/28—Sensitivity-increasing substances together with supersensitising substances
    • 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
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/28—Sensitivity-increasing substances together with supersensitising substances
    • G03C1/29—Sensitivity-increasing substances together with supersensitising substances the supersensitising mixture being solely composed of dyes ; Combination of dyes, even if the supersensitising effect is not explicitly disclosed

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Cosmetics (AREA)
  • Thiazole And Isothizaole Compounds (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

<FORM:0684166/IV (b)/1> Compounds of the general formula of Fig. 1, wherein D represents the atoms necessary to complete a 5- or 6-membered heterocyclic nucleus, which may bear a fused-on arylene ring, n is 1 or 2, R is H, alkyl, substituted alkyl, aryl, alkenyl, or alkylene, and R is acyl, substituted or not, are prepared by condensing a compound of the general formula of Fig. 3 or of Fig. 4 (wherein X is an acid residue) with an ester, anhydride, or acid chloride of an aliphatic, aromatic, or heterocyclic acid. N : N1-Bis-3-methylbenzthiazolylidene-malonamide is prepared by heating together N-methyl-2-iminodihydrobenzthiazole and ethyl malonate. N-3-phenylbenzthiazolylidene-acetamide, N-3-methylbenzthiazolylidene - acetamide, N - 3 - methylbenzthiazolylidene - benzthiazolyl - (2) - acetamide, N - 3 - methylbenzthiazolylidene - benzamide, N - 3 - benzthiazolylidene - acetoacetamide, N - benzthiazolylidene - benzamide - (2 - benzamidobenzthiazole) N - benziminazolylidene - benzamidobenziminazole), N - pyridyl-(4)-acetamide, N : N1-bis - 3 - methylbenzthiazolylidene - hydroquinonediacetamide, N - 6 : 7 - benzbenzininazolylidene - benzamide, N - benzoxazolylidene - benzamide, and N - pyridyl - (2) - benzoylacetamide are similarly prepared. Compounds of the general formula of Fig. 1, wherein R1 is an amido group and D, R, and n are as before, are prepared by condensing a compound of the general formula of Fig. 3 or of Fig. 4 (wherein X is an acid residue) with phosgene, urea, or a urea derivative. N-3-Methylbenzthiazolylidene-urea is prepared by melting together N-methyl-2-iminodihydrobenzthiazole and urea. 1 : 3 - Bis - benzthiazolylidene - acetamide is prepared by adding an ethenol solution of potassium hydroxide to a solution of N-3-methylbenzthiazolylidene - 3 - methylbenzthiazolyl acetamide iodide (prepared by heating N - 3 - methylbenzthiazolylidene - benzthiazolylacetamide with methyl iodide in a sealed tube).
GB2501/50A 1949-02-01 1950-01-31 Improvements in or relating to the sensitization and supersensitization of photographic emulsions Expired GB684166A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR812872X 1949-02-01

Publications (1)

Publication Number Publication Date
GB684166A true GB684166A (en) 1952-12-10

Family

ID=9265867

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2501/50A Expired GB684166A (en) 1949-02-01 1950-01-31 Improvements in or relating to the sensitization and supersensitization of photographic emulsions

Country Status (5)

Country Link
US (1) US2680686A (en)
DE (1) DE812872C (en)
FR (1) FR979853A (en)
GB (1) GB684166A (en)
NL (1) NL72814C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE557439A (en) * 1956-05-14
BE557438A (en) * 1956-05-14

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB447038A (en) * 1934-08-03 1936-05-04 John David Kendall Improvements in or relating to the production of dyes of the cyanine type
GB456362A (en) * 1935-05-08 1936-11-09 John David Kendall Improvements in or relating to sensitizing photographic emulsions
FR810104A (en) * 1935-08-16 1937-03-15 Ilford Ltd Improvements to dyeing materials
BE435348A (en) * 1937-05-29
GB517197A (en) * 1938-07-22 1940-01-23 John David Kendall Improvements in or relating to colour photography
US2298732A (en) * 1940-12-16 1942-10-13 Eastman Kodak Co Polymethine base
GB617720A (en) * 1944-03-21 1949-02-10 Dastman Kodak Company Improvements in or relating to photography
BE486662A (en) * 1948-01-13
BE494175A (en) * 1949-03-02

Also Published As

Publication number Publication date
US2680686A (en) 1954-06-08
NL72814C (en)
FR979853A (en) 1951-05-04
DE812872C (en) 1951-09-06

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