GB1117384A - Manufacture of isopropenylpyridines - Google Patents
Manufacture of isopropenylpyridinesInfo
- Publication number
- GB1117384A GB1117384A GB2761866A GB2761866A GB1117384A GB 1117384 A GB1117384 A GB 1117384A GB 2761866 A GB2761866 A GB 2761866A GB 2761866 A GB2761866 A GB 2761866A GB 1117384 A GB1117384 A GB 1117384A
- Authority
- GB
- United Kingdom
- Prior art keywords
- formaldehyde
- effected
- methyl
- thermal decomposition
- isopropenylpyridines
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
Abstract
2- and 4-Isopropenylpyridines are prepared by the thermal decomposition of the corresponding 2-pyridylpropanol or 2-methyl-2-pyridyl-propane-1,3-diol. The starting materials may carry alkyl substituents and/or may be fused to an aromatic nucleus, as in a quinolyl radical. The thermal decomposition may be effected by contacting an aqueous solution of the starting material with a hot liquid, e.g. glycerol, containing a basic dehydration catalyst, e.g. potassium hydroxide. Examples are given. 2- and 4-Pyridylpropanols and 2-methyl-2-pyridylpropane-1,3-diols, used as starting materials, are obtainable by the interaction of formaldehyde and the appropriate ethylpyridine. This reaction may be effected at 40-140 DEG C., suitably under pressure, an excess of formaldehyde being preferably used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2761866A GB1117384A (en) | 1966-06-21 | 1966-06-21 | Manufacture of isopropenylpyridines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2761866A GB1117384A (en) | 1966-06-21 | 1966-06-21 | Manufacture of isopropenylpyridines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1117384A true GB1117384A (en) | 1968-06-19 |
Family
ID=10262531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2761866A Expired GB1117384A (en) | 1966-06-21 | 1966-06-21 | Manufacture of isopropenylpyridines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1117384A (en) |
-
1966
- 1966-06-21 GB GB2761866A patent/GB1117384A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CH356109A (en) | Durable concentrated aqueous wetting agent with no more than minimal foaming power | |
| GB1117384A (en) | Manufacture of isopropenylpyridines | |
| DK105016C (en) | Process for the preparation of 2,6-dichlorobenzonitrile. | |
| ES305931A1 (en) | Procedure for the joining of a plastic material sheet with a support. (Machine-translation by Google Translate, not legally binding) | |
| ES331797A1 (en) | Procedure for the preparation of alynatic aminonitrils. (Machine-translation by Google Translate, not legally binding) | |
| GB974168A (en) | Manufacture of 2-ª-methoxyethylpyridine | |
| FR1175102A (en) | Fluid heating | |
| DK143823C (en) | TIP CUTTER OF THE TYPE INDEPENDABLE TO THE CORD | |
| DK107034C (en) | Process for the preparation of basic substituted carbinols. | |
| DK104620C (en) | Process for the preparation of 2,6-dichlorobenzonitrile. | |
| ES314562A1 (en) | Procedure for the obtaining of halogeno-alcanos thiocarbamate. (Machine-translation by Google Translate, not legally binding) | |
| DK110079C (en) | Process for the preparation of vitamin- or carotenoid-containing or both vitamin- and carotenoid-containing dry powders. | |
| FR1148260A (en) | Heating boiler | |
| DK126183B (en) | Process for the preparation of ether derivatives of erythro-m-hydroxy-α- (1-aminoethyl) -benzyl alcohols. | |
| GB1082093A (en) | The preparation of 3-ethylpyridine | |
| FR76772E (en) | Irradiated petroleum resins | |
| ES229911A1 (en) | A new procedure for obtaining glass fiber sheets (Machine-translation by Google Translate, not legally binding) | |
| FR1142539A (en) | Advanced water heater | |
| CA522226A (en) | Heat pump water heater | |
| ES318915A1 (en) | Procedure for preparing alcohyl 5-alcoxy-1,3-oxazol-4-il-acetate. (Machine-translation by Google Translate, not legally binding) | |
| FR1161670A (en) | Advanced heater | |
| ES235136A3 (en) | Procedure for the preparation of cellular or spongeous structures (Machine-translation by Google Translate, not legally binding) | |
| FR1605031A (en) | Ethynyl benzene cpds. | |
| ES237738A1 (en) | Procedure for obtaining tomato powder (Machine-translation by Google Translate, not legally binding) | |
| DK89160C (en) | Process for the preparation of stable aqueous panthenol solutions. |