GB622273A - Improvements in or relating to dyes and particularly photographic sensitising dyes - Google Patents
Improvements in or relating to dyes and particularly photographic sensitising dyesInfo
- Publication number
- GB622273A GB622273A GB24239/48A GB2423948A GB622273A GB 622273 A GB622273 A GB 622273A GB 24239/48 A GB24239/48 A GB 24239/48A GB 2423948 A GB2423948 A GB 2423948A GB 622273 A GB622273 A GB 622273A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nuclei
- pyridine
- bis
- heterocyclic
- dibromide
- 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
- C09B23/14—Styryl dyes
- C09B23/145—Styryl dyes the ethylene chain carrying an heterocyclic residue, e.g. heterocycle-CH=CH-C6H5
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Indole Compounds (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Abstract
Styryl dyes are prepared by condensing 4 mols. of a p-tertiary amino aromatic aldehyde containing a single aldehyde group with an alkylene bis quaternary salt of a heterocyclic nitrogen compound having two heterocyclic nitrogen nuclei linked through the quaternary nitrogen atoms by an alkylene group and having a reactive methyl group in the a - or g -position to each heterocyclic nitrogen atom. The condensation may be effected in the presence of an acid-binding substance, especially an organic amine having a dissociation constant greater than pyridine, e.g. ethylamine, diethylamine, piperidine, and diethylcyclohexylamine. The heterocyclic nuclei may be thiazole, oxazole, selenazole, iminazole, indolenine, dialkylindolenine, or pyridine nuclei, or nuclei having fused-on carbocyclic rings such as benzthiazole or quinoline nuclei, and may be linked by the use of polyfunctional hydrocarbon derivatives such as polyhalogen substituted alkanes, alkyl esters of alkylene sulphonic acids, alkyl disulphates, esters of sulphonic acids with polyhydric alcohols, and mixed compounds such as a - bromo - b - ethylsulphonates of ethane, and these derivatives may be substituted by nitro, primary or secondary amino, hydroxyl, carbonyl, thiocarbonyl, heterocyclic, or hydrocarbon groups. The aldehyde may be p-dimethylaminobenzaldehyde, o-methyl-p-diethylaminobenzaldehyde, 4-diethylamino-1-naphthaldehyde, 6 - diethylamino - 2 - naphthaldehyde, or p-N-morpholinobenzaldehyde. Hexamethylene-bis-[2 : 6-di-(p-dimethylaminostyryl)-pyridine]-dibromide is prepared by refluxing together hexamethylene-bis-(2 : 6 - lutidine) - dibromide, p - dimethylaminobenzaldehyde, piperidine, and alcohol. Trimethylene-bis-[2 : 4-di-(p-dimethylaminostyryl)-pyridine]-dibromide is similarly prepared. Specifications 334,706, [Class 2 (iii)], 573,394, 607,920, [Group IV (b)], 622,223, and 622,273 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US622273XA | 1945-04-28 | 1945-04-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB622273A true GB622273A (en) | 1949-04-28 |
Family
ID=22041035
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB24239/48A Expired GB622273A (en) | 1945-04-28 | 1946-04-26 | Improvements in or relating to dyes and particularly photographic sensitising dyes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB622273A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2411219A1 (en) * | 1977-12-07 | 1979-07-06 | Basf Ag | METHINIC COLORANTS, THEIR PREPARATION AND THEIR USES |
-
1946
- 1946-04-26 GB GB24239/48A patent/GB622273A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2411219A1 (en) * | 1977-12-07 | 1979-07-06 | Basf Ag | METHINIC COLORANTS, THEIR PREPARATION AND THEIR USES |
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