GB1132746A - Process for preparing nicotinic acid and isonicotinic acid - Google Patents
Process for preparing nicotinic acid and isonicotinic acidInfo
- Publication number
- GB1132746A GB1132746A GB2483166A GB2483166A GB1132746A GB 1132746 A GB1132746 A GB 1132746A GB 2483166 A GB2483166 A GB 2483166A GB 2483166 A GB2483166 A GB 2483166A GB 1132746 A GB1132746 A GB 1132746A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- pyridine
- isonicotinic
- june
- preparing nicotinic
- 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
- C07D213/60—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 with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/79—Acids; Esters
- C07D213/803—Processes of preparation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
Abstract
1,132,746. Nicotinic and isonicotinic acids. RUTGERSWERKE UND TEERVERWERTUNG A.G. 3 June, 1966 [25 June, 1965], No. 24831/66. Heading C2C. In a process for preparing nicotinic acid or isonicotinic acid by oxidation of a substituted pyridine selected from 3-alkyl pyridine, 4- alkyl pyridine and mixtures of pyridine bases containing them, the substituted pyridine to be oxidized is dissolved in the proportion of 1 : 1 to 1: 10 by weight in an inert organic solvent which remains chemically unchanged under the conditions of the process, and the resulting solution is heated in the presence of selenium dioxide as catalyst to 130-200‹ C. with introduction of NO 2 into the solution.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER0040947 | 1965-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1132746A true GB1132746A (en) | 1968-11-06 |
Family
ID=7406212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2483166A Expired GB1132746A (en) | 1965-06-25 | 1966-06-03 | Process for preparing nicotinic acid and isonicotinic acid |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB1132746A (en) |
| SE (1) | SE321223B (en) |
-
1966
- 1966-06-03 GB GB2483166A patent/GB1132746A/en not_active Expired
- 1966-06-20 SE SE837666A patent/SE321223B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1620159A1 (en) | 1972-04-20 |
| SE321223B (en) | 1970-03-02 |
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