GB1434472A - Colour photographic silver halide material containing 2- equivalent yellow couplers - Google Patents

Colour photographic silver halide material containing 2- equivalent yellow couplers

Info

Publication number
GB1434472A
GB1434472A GB1256474A GB1256474A GB1434472A GB 1434472 A GB1434472 A GB 1434472A GB 1256474 A GB1256474 A GB 1256474A GB 1256474 A GB1256474 A GB 1256474A GB 1434472 A GB1434472 A GB 1434472A
Authority
GB
United Kingdom
Prior art keywords
methyl
prepared
silver halide
material containing
chloro
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
GB1256474A
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of GB1434472A publication Critical patent/GB1434472A/en
Expired legal-status Critical Current

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
    • G03C7/305—Substances liberating photographically active agents, e.g. development-inhibiting releasing couplers
    • G03C7/30511—Substances liberating photographically active agents, e.g. development-inhibiting releasing couplers characterised by the releasing group
    • G03C7/30517—2-equivalent couplers, i.e. with a substitution on the coupling site being compulsory with the exception of halogen-substitution
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
    • C07D307/82—Benzo [b] furans; Hydrogenated benzo [b] furans 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 carbon atoms of the hetero ring
    • C07D307/84—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
    • C07D307/85—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen attached in position 2

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1434472 Amides AGFA-GEVAERT AG 21 March 1974 [21 March 1973] 12564/74 Heading C2C [Also in Division G2] A photographic yellow coupler of the formula is prepared by heating α-(2-ethoxycarbonyl-4- methyl - phenoxy) - 2 - chloro - 4 - hexadecyloxy-acetanilide in absolute benzene and sodium methylate solution. α-(2-Ethoxy-carbonyl-4- methyl - phenoxy) - 2 - chloro - 4 - hexadecyloxyacetanilide is prepared by heating 6-hydroxy-3- methyl-benzoic acid ethyl ester and 2-chloro-4- hexadecyloxy - α - bromoacetanilide in absolute ethanol and sodium methylate solution. 6 - Hydroxy - 3 - methyl - benzoic acid ethyl ester is prepared by adding hydrochloric acid to an ethanolic solution of 6-hydroxy-3-methyl-benzoic acid. A photographic yellow coupler of the formula is prepared similarly.
GB1256474A 1973-03-21 1974-03-21 Colour photographic silver halide material containing 2- equivalent yellow couplers Expired GB1434472A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732313989 DE2313989A1 (en) 1973-03-21 1973-03-21 COLOR PHOTOGRAPHIC MATERIAL AND METHOD FOR MAKING YELLOW IMAGES USING NEW 2-AEQUIVAL YELLOW COUPLERS

Publications (1)

Publication Number Publication Date
GB1434472A true GB1434472A (en) 1976-05-05

Family

ID=5875410

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1256474A Expired GB1434472A (en) 1973-03-21 1974-03-21 Colour photographic silver halide material containing 2- equivalent yellow couplers

Country Status (4)

Country Link
BE (1) BE812283A (en)
CA (1) CA1016385A (en)
DE (1) DE2313989A1 (en)
GB (1) GB1434472A (en)

Also Published As

Publication number Publication date
CA1016385A (en) 1977-08-30
DE2313989A1 (en) 1974-09-26
BE812283A (en) 1974-09-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee