GB869954A - Improvements in and relating to the production of polypyridyls - Google Patents
Improvements in and relating to the production of polypyridylsInfo
- Publication number
- GB869954A GB869954A GB2988658A GB2988658A GB869954A GB 869954 A GB869954 A GB 869954A GB 2988658 A GB2988658 A GB 2988658A GB 2988658 A GB2988658 A GB 2988658A GB 869954 A GB869954 A GB 869954A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pyridine
- salt
- polypyridyls
- polypyridyl
- carried out
- 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
Landscapes
- Pyridine Compounds (AREA)
Abstract
Polypyridyls are obtained by heating a salt of pyridine or a salt of a polypyridyl. The free base i.e. pyridine or a polypyridyl, may be present in addition to the salt. Preferably the reaction is carried out in the presence of a metal halide which forms complex compounds with condensation products of pyridine and polypyridyls, for example, halides of iron, zinc, copper, cobalt and nickel. Preferably the salt of pyridine or a polypyridyl used as starting material is the hydrochloride. The preferred temperatures for carrying out the process are in the range 270-340 DEG C. and the process may be carried out under elevated pressure. The surfaces of the reaction vessel which are in contact with the reaction mixture should be made of a material which is resistant to corrosion, e.g. tantalum. Examples are given of the preparation of 221-di-pyridyl and 2,21,211,2111-tetrapyridyl.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2988658A GB869954A (en) | 1958-09-18 | 1958-09-18 | Improvements in and relating to the production of polypyridyls |
| DE1959I0016956 DE1288606B (en) | 1858-09-18 | 1959-09-11 | Process for the production of polypyridylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2988658A GB869954A (en) | 1958-09-18 | 1958-09-18 | Improvements in and relating to the production of polypyridyls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB869954A true GB869954A (en) | 1961-06-07 |
Family
ID=10298782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2988658A Expired GB869954A (en) | 1858-09-18 | 1958-09-18 | Improvements in and relating to the production of polypyridyls |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB869954A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3210366A (en) * | 1962-03-08 | 1965-10-05 | Ici Ltd | Manufacture of 2, 2'-dipyridyl |
-
1958
- 1958-09-18 GB GB2988658A patent/GB869954A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3210366A (en) * | 1962-03-08 | 1965-10-05 | Ici Ltd | Manufacture of 2, 2'-dipyridyl |
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