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 emulsionsInfo
- 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
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).
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE557439A (en) * | 1956-05-14 | |||
BE557438A (en) * | 1956-05-14 |
Family Cites Families (9)
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 |
-
0
- NL NL72814D patent/NL72814C/xx active
-
1949
- 1949-02-01 FR FR979853D patent/FR979853A/en not_active Expired
-
1950
- 1950-01-28 DE DEG922A patent/DE812872C/en not_active Expired
- 1950-01-31 US US141601A patent/US2680686A/en not_active Expired - Lifetime
- 1950-01-31 GB GB2501/50A patent/GB684166A/en not_active Expired
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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