GB646900A - Thiazolone cyanine dyes and the method of preparing the same - Google Patents
Thiazolone cyanine dyes and the method of preparing the sameInfo
- Publication number
- GB646900A GB646900A GB20812/48A GB2081248A GB646900A GB 646900 A GB646900 A GB 646900A GB 20812/48 A GB20812/48 A GB 20812/48A GB 2081248 A GB2081248 A GB 2081248A GB 646900 A GB646900 A GB 646900A
- Authority
- GB
- United Kingdom
- Prior art keywords
- thioacetanilide
- acid
- ethyl
- butanol
- ethylbenzthiazolylidene
- 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
- C09B23/02—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups
- C09B23/04—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups one >CH- group, e.g. cyanines, isocyanines, pseudocyanines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Cosmetics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
Abstract
Substituted thioamides of the general formula <FORM:0646900/IV (b)/1> wherein A1 is the residue of a heterocyclic nucleus having 5 or 6 atoms in the heterocyclic ring, R2 is alkyl, allyl, aryl, or aralkyl, R3 is alkyl or aralkyl, and m is 1 or 2, are prepared by condensing a heterocyclic quaternary ammonium salt containing a reactive methyl group in the a - or g -position to the quaternary N atom with an alkyl, allyl, aryl, or aralkyl isothiocyanate in the presence of a base such as triethylamine or pyridine. a -(3-Ethylbenzthiazolylidene)-thioacetanilide is prepared by heating together 2-methylbenzthiazole and ethyl p-toluenesulphonate, pouring the product into a solution of phenyl isothiocyanate in pyridine, and stirring and heating. a -(3-Methyl-6-methoxybenzthiazolylidene)-thioacetanilide is prepared by mixing together 2-methyl-6-methoxybenzthiazole methyl p-toluenesulphonate, methanol, phenyl isothiocyanate, and triethylamine, and allowing to stand. a -(1-Ethyl-3 : 3 : 5-trimethylindolinylidene) - thioacetanilide, a - (3 - ethylbenzthiazolylidene)-N-allylthioacetamide, a -(3-ethyl-5-methoxybenzselenazolylidene) - thioacetanilide, a - (3 - ethyl - 4 : 5 - diphenyloxazolylidene) - thioacetanilide, a - (3 - ethyl - 5 : 6 - dimethylbenzoxazolylidene) - thioacetanilide, a - (3 - ethylbenzthiazolylidene)-thioacet-o-toluidide, a -(3-ethyl6 - methoxybenzthiazolylidene) - thioacet - a - naphthalide, a - (3 - ethylbenzthiazolylidene) - N - ethylthioacetamide, a - (3 : 6 - dimethylbenzthiazolylidene) - thioacetanilide, a - (3 - ethyl - 6 - methoxybenzthiazolylidene) - thioacet - b - naphthalide, a - (1 - methyl - 2 - quinolylidene) - thioacetanilide, a - (3 - methylbenzselenazolylidene) - thioacetanilide, and a - (3 - ethyl - 5 - methyl - 4 - phenylthiazolylidene) - thioacetanilide are similarly prepared. Specification 646,896 is referred to.ALSO:A thiazolone cyanine dye is prepared by heating a substituted thioamide of the general formula <FORM:0646900/IV (c)/1> wherein A1 is the residue of a heterocyclic nucleus having 5 or 6 carbon atoms in the heterocyclic ring, R2 is alkyl, allyl, aryl, or aralkyl, R3 is alkyl or aralkyl, and m is 1 or 2, with an a -halogen- or a : a -dihalogen-acetic acid or with an a -halogenpropionic acid. The reactants may be heated together in a bomb or sealed tube or may be refluxed or heated together with an alcohol or acetic acid or anhydride. Numerous thioamides are specified. Dyes are prepared by heating together: (1) a - (3 - ethylbenzthiazolylidene) - thioacetanilide and bromacetic acid in n-butanol; (2) a - (3 - methyl - 6 - methoxybenzthiazolylidene)-thioacetanilide and bromacetic acid in n-butanol; (3) a - (1 - ethyl - 3 : 3 : 5 - trimethylindolinylidene)-thioacetanilide and bromacetic acid in n-butanol; (4) a -(3-ethylbenzthiazolylidene)-N-allylthioacetamide and chloracetic acid in n-butanol; (5) a -(3-ethyl-5-methoxybenzselenazolylidene) - thioacetanilide and bromacetic acid in n-butanol; (6) a -(3-ethylbenzthiazolylidene)-thioacet-o-toluidide and bromacetic acid in n-butanol; (7) a -(3-ethyl-6-methoxybenzthiazolylidene) - thioacet - a - naphthalide and bromacetic acid in n-butanol; (8) a -(3-ethylbenzthiazolylidene) - N - ethylthioacetamide and bromacetic acid in acetic acid; (9) a - (3 - ethyl - 6 - methoxybenzthiazolylidene)-thioacet-b -naphthalide and bromacetic acid in n-butanol; (10) a -(3 : 6-dimethylbenzthiazolylidene)-thioacetanilide and bromacetic acid in n-butanol; (11) a -(3-ethyl-5-methyl-4-phenylthiazolylidene)-thioacetanilide and bromacetic acid in acetic acid; (12) a -(3-methylbenzselenazolylidene) - thioacetanilide and bromacetic acid in n-butanol; (13) a -(1-methyl-2-quinolylidene) - thioacetanilide and bromacetic acid in n-butanol; (14) a -(3-ethylbenzthiazolylidene) - thioacetanilide and a - chloropropionic acid in n-propanol; (15) a -(3-ethylbenzthiazolylidene)-thioacetanilide and dichloracetic acid in n-propanol; (16) a -(3-ethyl-4 : 5-diphenyloxazolylidene)-thioacetanilide and bromacetic acid in p acetic acid; and (17) a -(3-ethyl-5 : 6 - dimethylbenzoxazolylidene) - thioacetanilide and bromacetic acid in acetic acid. The dyes may be converted to iodides, perchlorates, or thiocyanates. Specification 646,896 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US646900XA | 1947-11-18 | 1947-11-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB646900A true GB646900A (en) | 1950-11-29 |
Family
ID=22057655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20812/48A Expired GB646900A (en) | 1947-11-18 | 1948-08-06 | Thiazolone cyanine dyes and the method of preparing the same |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB646900A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4885366A (en) * | 1988-06-08 | 1989-12-05 | Eastman Kodak Company | Novel selenium-containing merocyanine dyes |
US4937344A (en) * | 1988-06-08 | 1990-06-26 | Eastman Kodak Company | Novel sulfur-containing merocyanine dyes |
-
1948
- 1948-08-06 GB GB20812/48A patent/GB646900A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4885366A (en) * | 1988-06-08 | 1989-12-05 | Eastman Kodak Company | Novel selenium-containing merocyanine dyes |
US4937344A (en) * | 1988-06-08 | 1990-06-26 | Eastman Kodak Company | Novel sulfur-containing merocyanine dyes |
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