ATE146459T1 - Verfahren zur herstellung von 2-methyl-3,5- dialkylpyridinen durch dealkylierung mit schwefel - Google Patents
Verfahren zur herstellung von 2-methyl-3,5- dialkylpyridinen durch dealkylierung mit schwefelInfo
- Publication number
- ATE146459T1 ATE146459T1 AT91915443T AT91915443T ATE146459T1 AT E146459 T1 ATE146459 T1 AT E146459T1 AT 91915443 T AT91915443 T AT 91915443T AT 91915443 T AT91915443 T AT 91915443T AT E146459 T1 ATE146459 T1 AT E146459T1
- Authority
- AT
- Austria
- Prior art keywords
- sulfur
- dialkylpyridines
- dealkylation
- methyl
- producing
- Prior art date
Links
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title abstract 2
- 229910052717 sulfur Inorganic materials 0.000 title abstract 2
- 239000011593 sulfur Substances 0.000 title abstract 2
- 230000020335 dealkylation Effects 0.000 title 1
- 238000006900 dealkylation reaction Methods 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- GFYHSKONPJXCDE-UHFFFAOYSA-N 2,3,5-trimethylpyridine Chemical compound CC1=CN=C(C)C(C)=C1 GFYHSKONPJXCDE-UHFFFAOYSA-N 0.000 abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- NBBJYMSMWIIQGU-UHFFFAOYSA-N Propionic aldehyde Chemical compound CCC=O NBBJYMSMWIIQGU-UHFFFAOYSA-N 0.000 abstract 2
- 125000000217 alkyl group Chemical group 0.000 abstract 2
- 238000002360 preparation method Methods 0.000 abstract 2
- 150000003222 pyridines Chemical class 0.000 abstract 2
- -1 2-ethyl Chemical group 0.000 abstract 1
- 238000005653 Chichibabin synthesis reaction Methods 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 125000003710 aryl alkyl group Chemical group 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N butyric aldehyde Natural products CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000002243 precursor Substances 0.000 abstract 1
- 238000010992 reflux Methods 0.000 abstract 1
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/565,957 US5061805A (en) | 1990-08-10 | 1990-08-10 | Process for preparing 2-methyl-3,5-dialkylpyridines by dealkylation with sulfur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE146459T1 true ATE146459T1 (de) | 1997-01-15 |
Family
ID=24260824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT91915443T ATE146459T1 (de) | 1990-08-10 | 1991-08-07 | Verfahren zur herstellung von 2-methyl-3,5- dialkylpyridinen durch dealkylierung mit schwefel |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5061805A (de) |
| EP (1) | EP0547092B1 (de) |
| JP (1) | JPH05509328A (de) |
| AT (1) | ATE146459T1 (de) |
| DE (1) | DE69123742T2 (de) |
| WO (1) | WO1992002506A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6437139B1 (en) | 1997-05-06 | 2002-08-20 | Pdi-Research Laboratories, Inc. | Synthesis of pharmaceutically useful pyridine derivatives |
| CA2204580A1 (en) * | 1997-05-06 | 1998-11-06 | Michel Zoghbi | Synthesis of pharmaceutically useful pyridine derivatives |
| CN103030592A (zh) * | 2012-12-11 | 2013-04-10 | 安徽国星生物化学有限公司 | 2，3，5-三甲基吡啶的水洗提纯方法 |
| CN103030591B (zh) * | 2012-12-11 | 2014-08-06 | 安徽国星生物化学有限公司 | 2，3，5-三甲基吡啶的吸附提纯方法 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6514395A (de) * | 1964-11-11 | 1966-05-12 | ||
| SE7804231L (sv) * | 1978-04-14 | 1979-10-15 | Haessle Ab | Magsyrasekretionsmedel |
| JPS6124569A (ja) * | 1984-07-13 | 1986-02-03 | Koei Chem Co Ltd | ２，３，５−コリジン及び／又は２，３，５，６−テトラメチルピリジンの製造法 |
-
1990
- 1990-08-10 US US07/565,957 patent/US5061805A/en not_active Expired - Fee Related
-
1991
- 1991-08-07 AT AT91915443T patent/ATE146459T1/de not_active IP Right Cessation
- 1991-08-07 DE DE69123742T patent/DE69123742T2/de not_active Expired - Fee Related
- 1991-08-07 WO PCT/US1991/005603 patent/WO1992002506A1/en not_active Ceased
- 1991-08-07 EP EP91915443A patent/EP0547092B1/de not_active Expired - Lifetime
- 1991-08-07 JP JP3514753A patent/JPH05509328A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE69123742D1 (de) | 1997-01-30 |
| WO1992002506A1 (en) | 1992-02-20 |
| EP0547092B1 (de) | 1996-12-18 |
| EP0547092A1 (de) | 1993-06-23 |
| US5061805A (en) | 1991-10-29 |
| DE69123742T2 (de) | 1997-04-03 |
| JPH05509328A (ja) | 1993-12-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| UEP | Publication of translation of european patent specification | ||
| REN | Ceased due to non-payment of the annual fee |