GB886269A - Improvements in or relating to photographic colour development - Google Patents

Improvements in or relating to photographic colour development

Info

Publication number
GB886269A
GB886269A GB168358A GB168358A GB886269A GB 886269 A GB886269 A GB 886269A GB 168358 A GB168358 A GB 168358A GB 168358 A GB168358 A GB 168358A GB 886269 A GB886269 A GB 886269A
Authority
GB
United Kingdom
Prior art keywords
methyl
ethyl
salts
picoline
benzimidazole
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
GB168358A
Inventor
Jozef Frans Willems
Jean Marie Nys
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 GB886269A publication Critical patent/GB886269A/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
    • C07D213/06—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 containing only hydrogen and carbon atoms in addition to the ring nitrogen atom
    • C07D213/16—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 containing only hydrogen and carbon atoms in addition to the ring nitrogen atom containing only one pyridine ring
    • C07D213/20—Quaternary compounds thereof
    • 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
    • G03C7/407—Development processes or agents therefor
    • G03C7/413—Developers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

Quaternary salts of the general formula <FORM:0886269/IV (b)/1> wherein Z completes a heterocyclic ring, X is an anion and R is an alkyl or aralkyl group substituted with a water-solubilizing group such as COOH, SO3H and PO3H2, and including such salts wherein X is absent and R forms an internal salt with the nitrogen atom, are prepared by reacting the base with a quaternising agent RX. Examples are given of the reaction of b -chloro-n-butyric acid with a -picoline, of p-carboxy-benzyl bromide with a -picoline, 5,6-dichloro - 3 - ethyl - 2 - methyl - benzimidazole, 2-methyl-benzselenazole, or 2-methyl-benzoxazole, and of butane sultone with 5,6-dichloro3 - ethyl - 2 - methyl - benzimidazole or 2,5,6 - trimethyl-benzthiazole to give internal salts. 5, 6 - Dichloro - 3 - ethyl - 2 - methyl - benz - imidazole is prepared by refluxing 2-ethylamino-4,5-dichloroanilin in aqueous HCl and acetic acid. Specification 886,270 is referred to.
GB168358A 1957-01-17 1958-01-17 Improvements in or relating to photographic colour development Expired GB886269A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG21310A DE1026621B (en) 1957-01-17 1957-01-17 Photographic color development process

Publications (1)

Publication Number Publication Date
GB886269A true GB886269A (en) 1962-01-03

Family

ID=7121691

Family Applications (1)

Application Number Title Priority Date Filing Date
GB168358A Expired GB886269A (en) 1957-01-17 1958-01-17 Improvements in or relating to photographic colour development

Country Status (4)

Country Link
BE (1) BE563975A (en)
DE (1) DE1026621B (en)
FR (1) FR1197927A (en)
GB (1) GB886269A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2197048A1 (en) * 1972-07-24 1974-03-22 Eastman Kodak Co

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE430369A (en) * 1938-04-26 1938-05-31

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2197048A1 (en) * 1972-07-24 1974-03-22 Eastman Kodak Co

Also Published As

Publication number Publication date
DE1026621B (en) 1958-03-20
BE563975A (en)
FR1197927A (en) 1959-12-03

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