GB1184244A - A Method of Preparing Pyridine and Substituted Pyridines - Google Patents
A Method of Preparing Pyridine and Substituted PyridinesInfo
- Publication number
- GB1184244A GB1184244A GB3887067A GB3887067A GB1184244A GB 1184244 A GB1184244 A GB 1184244A GB 3887067 A GB3887067 A GB 3887067A GB 3887067 A GB3887067 A GB 3887067A GB 1184244 A GB1184244 A GB 1184244A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pyridine
- picoline
- pyridines
- converted
- substituted pyridines
- 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
Abstract
1,184,244. Pyridines. IMPERIAL CHEMICAL INDUSTRIES Ltd. 31 Oct., 1968 [23 Aug., 1967], No. 38870/67. Heading C2C. Pyridines and 2-hydrocarbyl-substituted pyridines, e.g. α-picoline, are prepared by heating an N-alkyl pyrrole (or a tertiary amine precursor thereof) with iodine in the vapour phase at a temperature in the range 300-800‹ C. As a modification of the process, a 2-alkyl pyrrole may be used as starting material. The reaction is preferably carried out in the presence of an inorganic oxide, e.g. an oxide of calcium, nickel, aluminium or silicon. In the examples: (a) N-methyl pyrrole is converted to pyridine; (b) N-methyldiethylamine is converted to pyridine and trace amounts of α- and #-picoline and (c) triethylamine is converted to α-picoline and pyridine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3887067A GB1184244A (en) | 1967-08-23 | 1967-08-23 | A Method of Preparing Pyridine and Substituted Pyridines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3887067A GB1184244A (en) | 1967-08-23 | 1967-08-23 | A Method of Preparing Pyridine and Substituted Pyridines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1184244A true GB1184244A (en) | 1970-03-11 |
Family
ID=10406189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3887067A Expired GB1184244A (en) | 1967-08-23 | 1967-08-23 | A Method of Preparing Pyridine and Substituted Pyridines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1184244A (en) |
-
1967
- 1967-08-23 GB GB3887067A patent/GB1184244A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |