GB923347A - Production of alkyl pyridines - Google Patents
Production of alkyl pyridinesInfo
- Publication number
- GB923347A GB923347A GB586461A GB586461A GB923347A GB 923347 A GB923347 A GB 923347A GB 586461 A GB586461 A GB 586461A GB 586461 A GB586461 A GB 586461A GB 923347 A GB923347 A GB 923347A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mixture
- acetaldehyde
- alumina
- ammonia
- silica
- 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
Alkyl pyridines are obtained by heating together a mixture of methacrolein, acetaldehyde and ammonia. The process is preferably carried out at a temperature of 300-450 DEG C. in the presence of a condensation catalyst. The preferred catalyst is silica or alumina or a mixture of these and may contain in addition titania, zirconia, ceria or thoria and may also contain zinc, tin, lead, tungsten, nickel, cobalt, chromium, molybdenum, iron, copper, palladium or silver or a compound thereof. In an example methacrolein, acetaldehyde and ammonia are heated in the presence of a catalyst consisting of silica, alumina and lead fluoride to give a mixture of b -picoline and 3,5-lutidine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB586461A GB923347A (en) | 1961-02-17 | 1961-02-17 | Production of alkyl pyridines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB586461A GB923347A (en) | 1961-02-17 | 1961-02-17 | Production of alkyl pyridines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB923347A true GB923347A (en) | 1963-04-10 |
Family
ID=9804046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB586461A Expired GB923347A (en) | 1961-02-17 | 1961-02-17 | Production of alkyl pyridines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB923347A (en) |
-
1961
- 1961-02-17 GB GB586461A patent/GB923347A/en not_active Expired
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