DE2337087C2 - Verfahren zur Herstellung von 2- Methyl-5-ethylpyridin - Google Patents
Verfahren zur Herstellung von 2- Methyl-5-ethylpyridinInfo
- Publication number
- DE2337087C2 DE2337087C2 DE2337087A DE2337087A DE2337087C2 DE 2337087 C2 DE2337087 C2 DE 2337087C2 DE 2337087 A DE2337087 A DE 2337087A DE 2337087 A DE2337087 A DE 2337087A DE 2337087 C2 DE2337087 C2 DE 2337087C2
- Authority
- DE
- Germany
- Prior art keywords
- ammonium
- acetaldehyde
- reaction
- methyl
- ethylpyridine
- 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
- C07D213/09—Preparation by ring-closure involving the use of ammonia, amines, amine salts, or nitriles
- C07D213/10—Preparation by ring-closure involving the use of ammonia, amines, amine salts, or nitriles from acetaldehyde or cyclic polymers thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00274020A US3846435A (en) | 1972-07-21 | 1972-07-21 | Process for the production of 2-methyl-5-ethyl pyridine |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2337087A1 DE2337087A1 (de) | 1974-02-07 |
DE2337087C2 true DE2337087C2 (de) | 1982-09-23 |
Family
ID=23046435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2337087A Expired DE2337087C2 (de) | 1972-07-21 | 1973-07-20 | Verfahren zur Herstellung von 2- Methyl-5-ethylpyridin |
Country Status (10)
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE5719T1 (de) * | 1980-05-23 | 1984-01-15 | Lonza Ag | Verfahren zur herstellung von 3-picolin. |
FI814007L (fi) * | 1981-01-09 | 1982-07-10 | Lonza Ag | Foerfarande foer framstaellning av 3-pikolin |
CH660733A5 (de) * | 1981-09-29 | 1987-06-15 | Lonza Ag | Verfahren zur herstellung von 3-picolin. |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE541723A (US08158827-20120417-C00028.png) * | ||||
US2769007A (en) * | 1956-10-30 | Manufacture of a pyridine homologue | ||
US2615022A (en) * | 1949-12-27 | 1952-10-21 | Phillips Petroleum Co | Production of substituted pyridines |
US2745833A (en) * | 1950-05-29 | 1956-05-15 | Phillips Petroleum Co | Production of substituted pyridiens |
US2717897A (en) * | 1951-03-28 | 1955-09-13 | Union Carbide & Carbon Corp | Process for making substituted pyridines |
US2844583A (en) * | 1952-10-20 | 1958-07-22 | Celanese Corp | Production of 2-methyl-5-ethylpyridine |
US2745835A (en) * | 1952-11-17 | 1956-05-15 | Phillips Petroleum Co | Continuous process for production of alkyl pyridines |
US2935513A (en) * | 1957-09-10 | 1960-05-03 | Takeda Pharmaceutical | Continuous production of 2-methyl-5-ethylpyridine |
-
1972
- 1972-07-21 US US00274020A patent/US3846435A/en not_active Expired - Lifetime
-
1973
- 1973-07-02 NL NLAANVRAGE7309202,A patent/NL184272C/xx not_active IP Right Cessation
- 1973-07-10 AU AU57935/73A patent/AU471092B2/en not_active Expired
- 1973-07-11 IT IT51406/73A patent/IT989840B/it active
- 1973-07-16 GB GB3385773A patent/GB1413398A/en not_active Expired
- 1973-07-19 CA CA176,835A patent/CA1010044A/en not_active Expired
- 1973-07-19 FR FR7326474A patent/FR2193821B1/fr not_active Expired
- 1973-07-20 JP JP48080777A patent/JPS4943982A/ja active Pending
- 1973-07-20 CH CH1070573A patent/CH584199A5/xx not_active IP Right Cessation
- 1973-07-20 DE DE2337087A patent/DE2337087C2/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AU471092B2 (en) | 1975-01-16 |
FR2193821A1 (US08158827-20120417-C00028.png) | 1974-02-22 |
AU5793573A (en) | 1975-01-16 |
CA1010044A (en) | 1977-05-10 |
IT989840B (it) | 1975-06-10 |
NL184272B (nl) | 1989-01-02 |
NL184272C (nl) | 1989-06-01 |
DE2337087A1 (de) | 1974-02-07 |
GB1413398A (en) | 1975-11-12 |
CH584199A5 (US08158827-20120417-C00028.png) | 1977-01-31 |
NL7309202A (US08158827-20120417-C00028.png) | 1974-01-23 |
FR2193821B1 (US08158827-20120417-C00028.png) | 1977-08-12 |
JPS4943982A (US08158827-20120417-C00028.png) | 1974-04-25 |
US3846435A (en) | 1974-11-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OD | Request for examination | ||
D2 | Grant after examination | ||
8363 | Opposition against the patent | ||
8365 | Fully valid after opposition proceedings | ||
8339 | Ceased/non-payment of the annual fee |