GB985994A - Production of 7.14-dioxo-5,7,12,14-tetrahydroquinolino-[2,3-b]-acridines - Google Patents
Production of 7.14-dioxo-5,7,12,14-tetrahydroquinolino-[2,3-b]-acridinesInfo
- Publication number
- GB985994A GB985994A GB2687261A GB2687261A GB985994A GB 985994 A GB985994 A GB 985994A GB 2687261 A GB2687261 A GB 2687261A GB 2687261 A GB2687261 A GB 2687261A GB 985994 A GB985994 A GB 985994A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nitrobenzene
- benzotrichloride
- dianilino
- trans
- 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
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
- C09B48/00—Quinacridones
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Abstract
Linear-trans-quinacridones are prepared by reacting a 2,5-dianilino-terephthalic acid, which may be substituted by one or more halogen atoms or methyl or ethyl groups, with benzoyl bromide or benzotrichloride at temperatures between about 140 DEG and 250 DEG C. The process is preferably carried out in the presence of inert organic solvents or diluents, such as nitrobenzene, trichlorobenzene, N-methyl-pyrrolidone or naphthalene. In an example, 2,5-dianilino-terephthalic acid is heated to 175 DEG C. in nitrobenzene and benzotrichloride is run into the reaction mixture which is heated at 180 DEG C. for 5 hours, filtered, the residue washed with nitrobenzene, mixed with sodium carbonate, and finally treated with steam to give linear - trans - quinacridone. Specifications 896,803 and 917,830 are referred to.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB0058739 | 1960-07-26 | ||
| DEB60008A DE1190125B (en) | 1960-11-08 | 1960-11-08 | Process for the preparation of linear trans quinacridones |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB985994A true GB985994A (en) | 1965-03-17 |
Family
ID=25965699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2687261A Expired GB985994A (en) | 1960-07-26 | 1961-07-25 | Production of 7.14-dioxo-5,7,12,14-tetrahydroquinolino-[2,3-b]-acridines |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE606416A (en) |
| CH (1) | CH395394A (en) |
| GB (1) | GB985994A (en) |
-
1961
- 1961-06-05 CH CH652961A patent/CH395394A/en unknown
- 1961-07-20 BE BE606416A patent/BE606416A/en unknown
- 1961-07-25 GB GB2687261A patent/GB985994A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE606416A (en) | 1962-01-22 |
| CH395394A (en) | 1965-07-15 |
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