DK567489A - Fremgangsmaade til fremstilling af 2,3,5,6-tetrachlorpyridin og 2,3,6-trichlorpyridin - Google Patents
Fremgangsmaade til fremstilling af 2,3,5,6-tetrachlorpyridin og 2,3,6-trichlorpyridinInfo
- Publication number
- DK567489A DK567489A DK567489A DK567489A DK567489A DK 567489 A DK567489 A DK 567489A DK 567489 A DK567489 A DK 567489A DK 567489 A DK567489 A DK 567489A DK 567489 A DK567489 A DK 567489A
- Authority
- DK
- Denmark
- Prior art keywords
- trichloropyridine
- trichlorpyridine
- tetrachlorpyridine
- preparing
- tetrachloropyridine
- Prior art date
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
- C07D213/61—Halogen atoms or nitro radicals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US5018687A | 1987-05-13 | 1987-05-13 | |
| US5018687 | 1987-05-13 | ||
| US8801596 | 1988-05-12 | ||
| PCT/US1988/001596 WO1988008839A1 (en) | 1987-05-13 | 1988-05-12 | Process for the production of 2,3,5,6-tetrachloropyridine and 2,3,6-trichloropyridine |
| HU378588 | 1988-07-20 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK567489D0 DK567489D0 (da) | 1989-11-13 |
| DK567489A true DK567489A (da) | 1990-01-11 |
| DK162983B DK162983B (da) | 1992-01-06 |
| DK162983C DK162983C (da) | 1992-06-01 |
Family
ID=27270028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK567489A DK162983C (da) | 1987-05-13 | 1989-11-13 | Fremgangsmaade til fremstilling af 2,3,5,6-tetrachlorpyridin og 2,3,6-trichlorpyridin |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4785112A (da) |
| EP (2) | EP0363404B1 (da) |
| JP (1) | JP2588268B2 (da) |
| KR (1) | KR910001441B1 (da) |
| AT (1) | ATE119152T1 (da) |
| AU (1) | AU606170B2 (da) |
| CA (1) | CA1301764C (da) |
| DE (1) | DE3853209T2 (da) |
| DK (1) | DK162983C (da) |
| HU (1) | HU204255B (da) |
| IL (1) | IL86360A0 (da) |
| WO (1) | WO1988008839A1 (da) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5319088A (en) * | 1991-11-26 | 1994-06-07 | Dowelanco | Selective gas phase chlorination of polychlorinated β-picolines to produce 2,3,5,6-tetrachloropyridine and its precursors |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3186994A (en) * | 1962-10-18 | 1965-06-01 | Dow Chemical Co | Polychloropyridines |
| US3251848A (en) * | 1963-11-12 | 1966-05-17 | Dow Chemical Co | Vapor phase production of 2-chloropyridine and 2, 6-dichloropyridine |
| NL130304C (da) * | 1964-02-12 | |||
| US3420833A (en) * | 1967-09-08 | 1969-01-07 | Dow Chemical Co | Vapor phase production of polychlorinated compounds |
| US3538100A (en) * | 1968-03-15 | 1970-11-03 | Olin Corp | Process for preparing highly chlorinated pyridines |
| GB1532038A (en) * | 1976-10-26 | 1978-11-15 | Ici Ltd | Process for the preparation of 2,3,5-trichloropyridine |
| US4281135A (en) * | 1979-06-11 | 1981-07-28 | The Dow Chemical Company | Preparation of highly chlorinated pyridines |
| IL78341A (en) * | 1986-03-31 | 1989-08-15 | Makhteshim Chem Works Ltd | Method of preparing 2,3,6-trichloropyridine and 2,3,5,6-tetrachloropyridine in the gas phase |
| US4705859A (en) * | 1986-07-22 | 1987-11-10 | The Dow Chemical Company | Polychloropyridine production from polychloro-2,3-lutidines |
-
1988
- 1988-01-19 US US07/145,799 patent/US4785112A/en not_active Expired - Lifetime
- 1988-05-09 CA CA000566310A patent/CA1301764C/en not_active Expired - Fee Related
- 1988-05-12 KR KR1019890700031A patent/KR910001441B1/ko not_active IP Right Cessation
- 1988-05-12 JP JP63504603A patent/JP2588268B2/ja not_active Expired - Fee Related
- 1988-05-12 WO PCT/US1988/001596 patent/WO1988008839A1/en active IP Right Grant
- 1988-05-12 EP EP88904890A patent/EP0363404B1/en not_active Expired - Lifetime
- 1988-05-12 AT AT88904890T patent/ATE119152T1/de not_active IP Right Cessation
- 1988-05-12 DE DE3853209T patent/DE3853209T2/de not_active Expired - Fee Related
- 1988-05-12 AU AU17960/88A patent/AU606170B2/en not_active Ceased
- 1988-05-12 IL IL86360A patent/IL86360A0/xx not_active IP Right Cessation
- 1988-07-13 EP EP88111233A patent/EP0350521A1/en not_active Withdrawn
- 1988-07-20 HU HU883785A patent/HU204255B/hu not_active IP Right Cessation
-
1989
- 1989-11-13 DK DK567489A patent/DK162983C/da not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| US4785112A (en) | 1988-11-15 |
| KR910001441B1 (ko) | 1991-03-07 |
| AU1796088A (en) | 1988-12-06 |
| EP0363404A4 (en) | 1991-01-30 |
| EP0363404B1 (en) | 1995-03-01 |
| EP0363404A1 (en) | 1990-04-18 |
| WO1988008839A1 (en) | 1988-11-17 |
| AU606170B2 (en) | 1991-01-31 |
| KR890701561A (ko) | 1989-12-20 |
| HU204255B (en) | 1991-12-30 |
| DE3853209T2 (de) | 1995-06-29 |
| HUT50321A (en) | 1990-01-29 |
| JPH02504265A (ja) | 1990-12-06 |
| DE3853209D1 (de) | 1995-04-06 |
| ATE119152T1 (de) | 1995-03-15 |
| IL86360A0 (en) | 1988-11-15 |
| CA1301764C (en) | 1992-05-26 |
| DK567489D0 (da) | 1989-11-13 |
| EP0350521A1 (en) | 1990-01-17 |
| DK162983C (da) | 1992-06-01 |
| JP2588268B2 (ja) | 1997-03-05 |
| DK162983B (da) | 1992-01-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |
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