GB208722A - Improved process for the manufacture of perylene - Google Patents
Improved process for the manufacture of peryleneInfo
- Publication number
- GB208722A GB208722A GB31991/23A GB3199123A GB208722A GB 208722 A GB208722 A GB 208722A GB 31991/23 A GB31991/23 A GB 31991/23A GB 3199123 A GB3199123 A GB 3199123A GB 208722 A GB208722 A GB 208722A
- Authority
- GB
- United Kingdom
- Prior art keywords
- perylene
- phosphorus oxychloride
- manufacture
- zinc
- improved process
- 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
Abstract
By heating b -dinapthol with phosphorus oxychloride and zinc, a product is formed which on distillation yields perylene together with other bodies such as dinaphthylene oxide. The reaction may be carried out in vacuo or in a current of inert gas, and a substance such as quick lime may be added. According to the example, a mixture of b -dinaphthol, phosphorus oxychloride and zinc dust is heated to 200 DEG C.; the dry product is distilled in a retort at a temperature of 600 DEG C.; the distillate, on crystallization from toluene, consists of perylene. Specifications 136,564, 165,770, 165,771, 191,363, and 208,721 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) states that any dihydroxy compound of a -dinaphthyl or a derivative thereof may comprise the starting material; this subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR208722X | 1922-12-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB208722A true GB208722A (en) | 1924-06-12 |
Family
ID=8880607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB31991/23A Expired GB208722A (en) | 1922-12-21 | 1923-12-20 | Improved process for the manufacture of perylene |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB208722A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU639367B2 (en) * | 1990-08-20 | 1993-07-22 | Comalco Aluminium Limited | Ledge-free aluminium smelting cell |
-
1923
- 1923-12-20 GB GB31991/23A patent/GB208722A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU639367B2 (en) * | 1990-08-20 | 1993-07-22 | Comalco Aluminium Limited | Ledge-free aluminium smelting cell |
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