GB929593A - Production of pyridine bases - Google Patents
Production of pyridine basesInfo
- Publication number
- GB929593A GB929593A GB1249761A GB1249761A GB929593A GB 929593 A GB929593 A GB 929593A GB 1249761 A GB1249761 A GB 1249761A GB 1249761 A GB1249761 A GB 1249761A GB 929593 A GB929593 A GB 929593A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mixture
- present
- production
- pyridine
- pyridine bases
- 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
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/06—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom
- C07D213/08—Preparation by ring-closure
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
Abstract
Pyridine and b -picoline are produced by heating ammonia with a vaporised mixture of formaldehyde and acetaldehyde in the presence of at least two of the alkanols methanol, ethanol and n-propanol. The reaction is preferably carried out at 300-600 DEG C. in the presence of a condensation catalyst. Suitable catalysts are silica and/or alumina and may also contain an oxide of titanium, zirconium, cerium or thorium. In addition there may be present one or more of the metals zinc, cadmium, tin, lead, tungsten, nickel, cobalt, chromium, molybdenum, iron, palladium or silver or compounds thereof. If desired an inert diluent, such as steam or nitrogen, or a hydrocarbon such as benzene, may be present in the mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1249761A GB929593A (en) | 1961-04-07 | 1961-04-07 | Production of pyridine bases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1249761A GB929593A (en) | 1961-04-07 | 1961-04-07 | Production of pyridine bases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB929593A true GB929593A (en) | 1963-06-26 |
Family
ID=10005685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1249761A Expired GB929593A (en) | 1961-04-07 | 1961-04-07 | Production of pyridine bases |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB929593A (en) |
-
1961
- 1961-04-07 GB GB1249761A patent/GB929593A/en not_active Expired
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