GB923348A - Production of alkyl-substituted pyridines - Google Patents
Production of alkyl-substituted pyridinesInfo
- Publication number
- GB923348A GB923348A GB586561A GB586561A GB923348A GB 923348 A GB923348 A GB 923348A GB 586561 A GB586561 A GB 586561A GB 586561 A GB586561 A GB 586561A GB 923348 A GB923348 A GB 923348A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ammonia
- substituted pyridines
- propoxypropionaldehyde
- propoxybutyraldehyde
- reacted
- 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-substituted pyridines are produced by heating together ammonia and an alkoxyaldehyde of formula R1OCHR2CHR3-CHO, in which R1 is a primary alkyl group and R2 and R3 are primary alkyl groups or hydrogen. The process is preferably carried out at a temperature of 300-500 DEG C. in the presence of a condensation catalyst. Suitable alkoxyaldehydes are, for example, 3-propoxypropionaldehyde, 3-propoxybutyraldehyde or methoxyvaleraldehyde. Suitable catalysts are, for example, those containing silica and/or alumina. The catalysts may also contain titania, zirconia, ceria or thoria and zinc, cadmium, tin, lead, tungsten, nickel, cobalt, chromium, molybdenum, iron, copper, palladium or silver or a compound thereof. In the examples (a) 3-propoxypropionaldehyde is reacted with ammonia to give b -picoline and (b) 3-propoxybutyraldehyde is reacted with ammonia to give 3,4-lutidine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB586561A GB923348A (en) | 1961-02-17 | 1961-02-17 | Production of alkyl-substituted pyridines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB586561A GB923348A (en) | 1961-02-17 | 1961-02-17 | Production of alkyl-substituted pyridines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB923348A true GB923348A (en) | 1963-04-10 |
Family
ID=9804067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB586561A Expired GB923348A (en) | 1961-02-17 | 1961-02-17 | Production of alkyl-substituted pyridines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB923348A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116371417A (en) * | 2023-03-06 | 2023-07-04 | 济南悟通生物科技有限公司 | Catalyst for synthesizing 3, 4-dimethyl pyrrole and preparation method and application thereof |
-
1961
- 1961-02-17 GB GB586561A patent/GB923348A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116371417A (en) * | 2023-03-06 | 2023-07-04 | 济南悟通生物科技有限公司 | Catalyst for synthesizing 3, 4-dimethyl pyrrole and preparation method and application thereof |
| CN116371417B (en) * | 2023-03-06 | 2023-10-03 | 济南悟通生物科技有限公司 | Catalyst for synthesizing 3, 4-dimethyl pyrrole and preparation method and application thereof |
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