GB1254596A - Cyanine dyes and photographic silver halide emulsions containing them - Google Patents
Cyanine dyes and photographic silver halide emulsions containing themInfo
- Publication number
- GB1254596A GB1254596A GB8205/69A GB820569A GB1254596A GB 1254596 A GB1254596 A GB 1254596A GB 8205/69 A GB8205/69 A GB 8205/69A GB 820569 A GB820569 A GB 820569A GB 1254596 A GB1254596 A GB 1254596A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nucleus
- linkage
- pyrrolo
- aryl
- heterocyclic
- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
- C09B23/10—The polymethine chain containing an even number of >CH- groups
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
- C09B23/02—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups
- C09B23/06—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups three >CH- groups, e.g. carbocyanines
-
- 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
- G03C1/485—Direct positive emulsions
- G03C1/48515—Direct positive emulsions prefogged
- G03C1/48523—Direct positive emulsions prefogged characterised by the desensitiser
- G03C1/4853—Direct positive emulsions prefogged characterised by the desensitiser polymethine dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Plural Heterocyclic Compounds (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Abstract
1,254,596. Cyanine dyes. EASTMAN KODAK CO. 14 Feb., 1969 [15 Feb., 1968], No. 8205/69. Heading C4P. [Also in Divisions C2 and G2] A cyanine dye comprises two N-containing heterocyclic nuclei joined by a dimethine or trimethine linkage in which the first nucleus is a pyrrolo[2,3-b]pyrazine or a pyrrolo[2,3-b]quinoxaline nucleus joined at the 3-position to the linkage and the second nucleus is (a) a heterocyclic N-containing nucleus having 5 or 6 atoms in the heterocyclic ring joined in the 2- or 4- position relative to the N atom when the linkage is a dimethine linkage or (b) a 2-arylindole, pyrrolo[2,3-6]pyrazine or pyrrolo[2,3-b]quinoxaline nucleus joined at the 3-position when the linkage is a trimethine linkage. The cyanine dye may have a dimethine linkage and the second nucleus may be a desensitizing nucleus. The dye preferably has the formula wherein L is a methine linkage, R 1 is alkyl, substituted alkyl; cycloalkyl, aralkyl, alkenyl or aryl, R 2 is alkyl or aryl, R 3 and R 4 are each H, alkyl, cycloalkyl or aryl, or, taken together, the atoms necessary to form a fused benzene ring which may bear substituents, R 5 is H or aryl, R 6 is alkyl, cycloalkyl, or aryl or a heterocyclic radical containing 5 or 6 atoms in the heterocyclic ring, the hetero atom being N, O or S, Z represents the atoms necessary to complete a heterocyclic nucleus having 5 or 6 atoms in the heterocyclic ring, D represents the atoms necessary to complete an indole, pyrrolo[2,3-b]- pyrazine or pyrrolo[2,3-b]quinoxaline nucleus, R 7 is aryl when D completes an indole nucleus or, otherwise, H or aryl, n is 0 or 1 and X is an acid anion. Z preferably represents the atoms necessary to complete a desensitizing nucleus which may be a nitrobenzothiazole, nitrobenzoxazole, nitrobenzoselenazole, nitroindole, imidazo[4,5-b]quinoxaline or 1,3,3-trialkyl-3H-pyrrolo[2,3-b]pyridine nucleus. Many examples of these dyes are given and they may be prepared in the normal manner by refluxing the reactants in acetic anhydride.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US70559568A | 1968-02-15 | 1968-02-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1254596A true GB1254596A (en) | 1971-11-24 |
Family
ID=24834160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8205/69A Expired GB1254596A (en) | 1968-02-15 | 1969-02-14 | Cyanine dyes and photographic silver halide emulsions containing them |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3598595A (en) |
| BE (1) | BE728462A (en) |
| DE (1) | DE1907618A1 (en) |
| FR (1) | FR2001951A1 (en) |
| GB (1) | GB1254596A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE789549A (en) * | 1971-09-30 | 1973-03-29 | Eastman Kodak Co | COLORANT FROM THE CARBOCYANIN FAMILY, EMULSION CONTAINING THIS COLORANT AND PROCESS FOR THE PREPARATION OF THIS COLORANT |
| JPS5547373B2 (en) * | 1972-12-19 | 1980-11-29 | ||
| US4007170A (en) * | 1973-08-16 | 1977-02-08 | Eastman Kodak Company | Photographic emulsions containing methine dyes having a 1H-imidazo[4,5-b]pyrazine nucleus |
| JPH04336536A (en) * | 1991-05-14 | 1992-11-24 | Konica Corp | Silver halide emulsifying agent for photograph |
| US7626021B2 (en) * | 2004-07-27 | 2009-12-01 | Sgx Pharmaceuticals, Inc. | Fused ring heterocycle kinase modulators |
| RU2007127310A (en) * | 2004-12-17 | 2009-01-27 | Майкосол, Инк. (Us) | COMPOUNDS OF THIAZOLIA AND THEIR APPLICATION |
-
1968
- 1968-02-15 US US705595A patent/US3598595A/en not_active Expired - Lifetime
-
1969
- 1969-02-14 DE DE19691907618 patent/DE1907618A1/en not_active Withdrawn
- 1969-02-14 GB GB8205/69A patent/GB1254596A/en not_active Expired
- 1969-02-14 BE BE728462D patent/BE728462A/xx unknown
- 1969-02-14 FR FR6903552A patent/FR2001951A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| BE728462A (en) | 1969-07-16 |
| US3598595A (en) | 1971-08-10 |
| FR2001951A1 (en) | 1969-10-03 |
| DE1907618A1 (en) | 1969-10-09 |
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