GB514850A - Manufacture of substituted perinaphthindandiones - Google Patents
Manufacture of substituted perinaphthindandionesInfo
- Publication number
- GB514850A GB514850A GB14691/38A GB1469138A GB514850A GB 514850 A GB514850 A GB 514850A GB 14691/38 A GB14691/38 A GB 14691/38A GB 1469138 A GB1469138 A GB 1469138A GB 514850 A GB514850 A GB 514850A
- Authority
- GB
- United Kingdom
- Prior art keywords
- naphthalene
- anhydride
- perinaphthindandiones
- dicarboxylic acid
- hydroxy
- 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
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/587—Unsaturated compounds containing a keto groups being part of a ring
- C07C49/613—Unsaturated compounds containing a keto groups being part of a ring polycyclic
- C07C49/617—Unsaturated compounds containing a keto groups being part of a ring polycyclic a keto group being part of a condensed ring system
- C07C49/643—Unsaturated compounds containing a keto groups being part of a ring polycyclic a keto group being part of a condensed ring system having three rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
514,850. Perinaphthindandiones. SOC. OF CHEMICAL INDUSTRY IN BASLE. May 17, 1938, No. 14691. Convention date, May 18, 1937. [Class 2 (iii)] Perinaphthindandiones having groups forming salts with acids or bases in the naphthalene nucleus are produced by treating a correspondingly substituted naphthalene 1.8 dicarboxylic acid or the anhydride thereof with a malonic acid ester, e.g., diethyl malonate or by reducing a nitroperinaphthindandione, e.g., with an alkali hydrosulphide if desired in presence of an alkaline earth salt. Suitable starting materials are 3-hydroxy-naphthalene-1, 8-dicarboxylic anhydride ; naphthalene-1, 8- dicarboxylic acid anhydride - 3-sulphonic acid and 3-aminonapnthaleiie-1, 8-dicarboxylic acid anhydride. The reactants are preferably heated together to 150-250‹C. if desired in the presence of an inert solvent or diluent and of a condensing agent, e.g., zinc chloride. Examples describe the preparation of (1) 5-hydroxy-perinaphthindandione ; (2) 5-sulphoperinaphthindandione ; (3) 5-aminoperinaphthindandione by reduction of the corresponding nitro group.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH514850X | 1937-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB514850A true GB514850A (en) | 1939-11-20 |
Family
ID=4517638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14691/38A Expired GB514850A (en) | 1937-05-18 | 1938-05-17 | Manufacture of substituted perinaphthindandiones |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB514850A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3499760A (en) * | 1968-05-02 | 1970-03-10 | Dietzgen Co Eugene | Diazotype photoprinting materials and methods of use |
-
1938
- 1938-05-17 GB GB14691/38A patent/GB514850A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3499760A (en) * | 1968-05-02 | 1970-03-10 | Dietzgen Co Eugene | Diazotype photoprinting materials and methods of use |
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