GB597612A - Colour photography - Google Patents

Colour photography

Info

Publication number
GB597612A
GB597612A GB21630/45A GB2163045A GB597612A GB 597612 A GB597612 A GB 597612A GB 21630/45 A GB21630/45 A GB 21630/45A GB 2163045 A GB2163045 A GB 2163045A GB 597612 A GB597612 A GB 597612A
Authority
GB
United Kingdom
Prior art keywords
prepared
iodide
isopropylidenedioxybenzene
diethyl
methyl
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
GB21630/45A
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.)
Gen Analine & Film Corp
Original Assignee
Gen Analine & Film Corp
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
Priority claimed from US549788A external-priority patent/US2429574A/en
Application filed by Gen Analine & Film Corp filed Critical Gen Analine & Film Corp
Publication of GB597612A publication Critical patent/GB597612A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G03C1/00Photosensitive materials
    • G03C1/005Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08Sensitivity-increasing substances
    • G03C1/10Organic substances
    • G03C1/12Methine and polymethine dyes
    • G03C1/14Methine and polymethine dyes with an odd number of CH groups
    • G03C1/18Methine and polymethine dyes with an odd number of CH groups with three CH groups

Abstract

Cyanine dyes of the general formula <FORM:0597612/IV/1> wherein R and R1 each represent H or alkyl or aryl groups or together represent the atoms necessary to complete a hydrogenated ring system R2 and R3 are alkyl groups, X is an acid group, Y is S or Se, and Z represents the atoms necessary to complete a heterocyclic ring are prepared by condensing quaternary ammonium salts of thiazoles or selenazoles containing the substituted methylene dioxy ring as part of the nucleus with any of the known cyanine dye intermediates. R and R1 may be methyl, ethyl, propyl, butyl, amyl, hexyl, heptyl, octyl, decyl, phenyl, naphthyl, anthranyl, cyclopentylidene or cyclohexylidene and Z may complete an indolenine, thiazole, benzthiazole or benzselenazole ring, which may be substituted by alkyl, alkoxy, phenyl, naphthyl, anthranyl, alicyclic, dioxyalkyl or dioxycycloalkyl substituents. Z may complete isopropylidenedioxy-, methylenedioxy-, dimethyl-, cyclopentylidenedioxy-, or cyclohexylidenedioxy-benzthiazole or benzselenazole rings or methylphenyl- or diphenyl-thiazole or p selenazole rings. 3 : 31-Diethyl-5 : 6 : 51 : 61-diisopropylidenedioxybenzthiacarbocyanine iodide is prepared by refluxing together 2-methyl-5 : 6-isopropylidenedioxybenzthiazole ethyl p - toluenesulphonate and ethyl orthoformate in pyridine, and adding aqueous potassium iodide solution. 3 : 31-Diethyl-5 : 6 : 51 : 61-diisopropylidenedioxybenzselenacarbocyanine iodide, 3 : 31-diethyl-5 : 6 : 51 : 61-dicyclohexylidenedioxybenzthiacarbocyanine iodide, 3 : 31 - diethyl - 5 : 6 : 51 : 61-dimethylenedioxybenzthiacarbocyanine iodide, and 3 : 31-diethyl-5 : 6 : 51 : 61-dicyclopentylidenedioxybenzthiacarbocyanine iodide are similarly prepared. 3 : 31-Diethyl-5 : 6 - methylenedioxy - 51 : 61-dimethylbenzselenabenzthiacarbocyanine iodide is prepared by refluxing together in pyridine containing triethylamine 2 - (b - acetanilidovinyl) - 5 : 6 - methylenedioxybenzselenazole ethiodide and 2-methyl-5 : 6-dimethylbenzthiazole ethyl p - toluenesulphonate, and adding aqueous potassium iodide to an alcohol solution of the precipitated dye. 3 : 31-Diethyl-5 : 6-methylenedioxy-41-phenyl-51 -methylbenzselenathiazolocarbocyanine iodide, 3 : 31 -diethyl-5 : 6-methylenedioxy-51 : 61-cyclohexylidenedioxybenzthiacarbocyanine iodide, 3 : 31-diethyl-5 : 6-methylenedioxy - 51 : 61-cyclohexylidenedioxybenzselenzbenzthiacarbocyanine iodide, 3 : 31-diethyl-5 : 6-methylenedioxy-41 : 51-diphenylbenzthiathiazolocarbocyanine iodide, 3 : 31-diethyl-5 : 6 -cyclohexylidenedioxy-61 : 71-benzbenzthiacarbocyanine iodide, and 3 : 31-di-ethyl - 5 : 6 - cyclohexylidenedioxy - 51 : 61 - di - methoxybenzthiacarbocyanine iodide are similarly prepared. Alkylidenedioxybenzenes and cycloalkylidenedioxybenzenes are prepared by reacting catechol with an aliphatic aldehyde or ketone or a cyclic ketone. Isopropylidenedioxybenzene is prepared by dissolving catechol in hot anhydrous acetone and treating with excess phosphorus pentoxide. Cyclohexylidenedioxybenzene and cyclopentylidenedioxybenzene are similarly prepared. 2 - Brom - 4 : 5 - isopropylidenedioxybenzene is prepared by adding bromine to a carbon disulphide solution of isopropylidenedioxybenzene. 2 - Bromo - 4 : 5 - cyclohexylidenedioxybenzene and 2 - bromo - 4 : 5 - cyclopentylidenedioxybenzene are similarly prepared. 1 - Nitro - 2 - bromo - 4 : 5 - isopropylidenedioxybenzene is prepared by nitrating 2-bromo-4 : 5-isopropylidenedioxybenzene with nitric acid. Bis-(1-nitro-4 : 5-isopropylidenedioxybenzene)-2 : 21-disulphide is prepared by treating a boiling ethyl alcohol solution of 1-nitro-2-bromo-4 : 5-isopropylidenedioxybenzene with a fused mixture of sodium sulphide and sulphur. Bis-(1-nitro-4 : 5-isopropylidenedioxybenzene)-2 : 21-diselenide is similarly prepared. Bis-(1-nitro - 4 : 5 - cyclohexylidenedioxybenzene) - 2 : 21 - disulphide and bis-(1-nitro-4 : 5-cyclopentylidenedioxybenze) - 2 : 21 - disulphide are prepared by treating a boiling ethyl alcohol solution of 1 : 2-dinitro - 4 : 5 - cyclohexylidenedioxybenzene or of 1 : 2 - dinitro - 4 : 5 - cyclopentylidenedioxy - benzene with a fused mixture of sodium sulphide and sulphur. 1 : 2-Dinitro-4 : 5 -isopropylidenedioxybenzene is prepared by treating isopropylidenedioxybenzene with a mixture of glacial acetic and fuming nitric acids. 1 : 2-Dinitro-4 : 5-cyclohexylidenedioxybenzene, 1 : 2-dinitro-4 : 5-cyclopentylidenedioxybenzene and 1 : 2-dinitro-4 : 5-methylenedioxybenzene are prepared similarly. 2-Methyl-5 : 6-isopropylidenedioxybenzthiazole is prepared by heating together bis-(1-nitro-4 : 5-isopropylidenedioxybenzene) - 2 : 21 - disulphide, acetic anhydride, glacial acetic acid and zinc. The ethyl p-toluenesulphonate is prepared by heating with ethyl p-toluenesulphonate. 2-Methyl - 5 : 6 - cyclohexylidenedioxybenzthiazole, 2-methyl-5 : 6-cyclopentylidenedioxybenzthiazole, 2-methyl-5 : 6-isopropylidenedioxybenzselenazole, 2-methyl-5 : 6 - methylenedioxybenzthiazole and the corresponding ethyl p-toluenesulphonates are similarly prepared. Bis - (1 - nitro - 4 : 5 - methylenedioxybenzene) - 2 : 21-disulphide is prepared by treating 4 : 5-dinitromethylenedioxybenzene with an alcoholic solution of sodium sulphide and sulphur. 2 - (b - Acetanilidovinyl) - 5 : 6 - methylenedioxy - benzselenazole ethiodide is prepared by refluxing together a mixture of 2-methyl-5 : 6-methylenedioxybenzselenazole ethiodide, diphenylformamidine and acetic anhydride. 2-(b -Acetanilidovinyl) - 5 : 6 - methylenedioxybenzthiazole ethiodide and 2-(b -acetanilidovinyl)-5 : 6-cyclohexylidenedioxybenzthiazole ethiodide are similarly prepared. Specifications 458,400, 464,398, 465,823, [all in Group XX], 468,946, 479,838, [Group XX], 483,000 and 484,698 are referred to.
GB21630/45A 1944-08-16 1945-08-23 Colour photography Expired GB597612A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US549788A US2429574A (en) 1944-08-16 1944-08-16 Carbocyanines from alicyclicdioxy azoles

Publications (1)

Publication Number Publication Date
GB597612A true GB597612A (en) 1948-01-29

Family

ID=24194384

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21630/45A Expired GB597612A (en) 1944-08-16 1945-08-23 Colour photography

Country Status (2)

Country Link
US (1) US2423217A (en)
GB (1) GB597612A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2892838A (en) * 1955-08-22 1959-06-30 Sperry Rand Corp Photographic sensitizing dyes derived from 2-alkyl-6, 7-dihydro-4-h-thiopyrano(4, 3d) thiazole
US2892836A (en) * 1955-08-22 1959-06-30 Sperry Rand Corp Cyanine dyes
US2920962A (en) * 1958-01-10 1960-01-12 Du Pont Photographic elements

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2126078A (en) * 1932-04-26 1938-08-09 Agfa Ansco Corp Sensitizing photographic emulsion
BE398585A (en) * 1932-09-14
US2104855A (en) * 1932-09-23 1938-01-11 Agfa Ansco Corp Polymethine dyes

Also Published As

Publication number Publication date
US2423217A (en) 1947-07-01

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