GB984014A - Process for the production of substituted quinacridine-12,14-diones - Google Patents
Process for the production of substituted quinacridine-12,14-dionesInfo
- Publication number
- GB984014A GB984014A GB1953661A GB1953661A GB984014A GB 984014 A GB984014 A GB 984014A GB 1953661 A GB1953661 A GB 1953661A GB 1953661 A GB1953661 A GB 1953661A GB 984014 A GB984014 A GB 984014A
- Authority
- GB
- United Kingdom
- Prior art keywords
- isophthalic acid
- tolylamino
- chloro
- rings
- acid
- 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)
Abstract
In examples, 4: 6-dichloro-isophthalic acid is heated in the presence of copper acetate in an aqueous alkaline or ethyleneglycol/acetic acid medium with (1) p-toluidine to yield a mixture containing 4: 6 - di - p - tolylamino - isophthalic acid and 4 - p - tolylamino - 6 - chloro - isophthalic acid which is separated by fractional precipitation, (3) aniline to give 4-phenylamino - 6 - chloro - isophthalic acid which is then reacted with p-toluidine to obtain 4-phenylamino - 6 - p - tolylamino - isophthalic acid, and (4) p-anisidine to give 4:6-di-p-anisylamino-isophthalic acid.ALSO:The invention comprises quinacridine-12 : 14-diones of the formula <FORM:0984014/C4-C5/1> in which at least one of the rings A and B contains at least one substituent or a fused ring or ring system. Substituents specified are fluoro, chloro, bromo, iodo, cyano, nitro, trifluoromethyl, methyl, methoxy, phenoxy, acetylamino, benzoylamino, methylsulphonyl, phenylsulphonyl, carboxyethyl and sulphomethyl or the rings A and/or B may form a part of a naphthalene, anthraquinone, pyrene or carbazole residue. The compounds are made by heating a compound of the formula <FORM:0984014/C4-C5/2> where at least one of rings A and B contains at least one substituent or a fused ring or ring system and R is hydrogen or a hydrocarbon radical, with an acid condensing agent at a temperature above 70 DEG C. The compounds are pigments for plastics and synthetic resins.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH626460A CH427100A (en) | 1960-06-01 | 1960-06-01 | Process for the preparation of substituted quinacridine-12,14-diones |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB984014A true GB984014A (en) | 1965-02-24 |
Family
ID=4306831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1953661A Expired GB984014A (en) | 1960-06-01 | 1961-05-30 | Process for the production of substituted quinacridine-12,14-diones |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH427100A (en) |
| GB (1) | GB984014A (en) |
-
1960
- 1960-06-01 CH CH626460A patent/CH427100A/en unknown
-
1961
- 1961-05-30 GB GB1953661A patent/GB984014A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH427100A (en) | 1966-12-31 |
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