BE657822A - - Google Patents
Info
- Publication number
- BE657822A BE657822A BE657822A BE657822A BE657822A BE 657822 A BE657822 A BE 657822A BE 657822 A BE657822 A BE 657822A BE 657822 A BE657822 A BE 657822A BE 657822 A BE657822 A BE 657822A
- Authority
- BE
- Belgium
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US231581A US3186994A (en) | 1962-10-18 | 1962-10-18 | Polychloropyridines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE657822A true BE657822A (en:Method) | 1965-06-30 |
Family
ID=22869841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE657822A BE657822A (en:Method) | 1962-10-18 | 1964-12-31 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3186994A (en:Method) |
| BE (1) | BE657822A (en:Method) |
| GB (1) | GB991526A (en:Method) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3297556A (en) * | 1962-11-28 | 1967-01-10 | Olin Mathieson | Manufacture of 2-chloropyridine using photolytic light |
| GB1107043A (en) * | 1965-03-17 | 1968-03-20 | Robert Neville Haszeldine | Preparation of cyanuric chloride and pentachloropyridine |
| GB1599783A (en) * | 1978-02-15 | 1981-10-07 | Ici Ltd | Partial chlorination of 3-methyl pyridine |
| CA1089468A (en) * | 1978-04-24 | 1980-11-11 | The Dow Chemical Company | Process for preparing 2,3,5,6-tetrachloropyridine and pentachloropyridine |
| CA1084936A (en) * | 1978-06-19 | 1980-09-02 | Dow Chemical Company | Preparation of polychlorinated pyridines from 2,4- dichloro-6-(trichloromethyl) pyridines |
| EP0022885B1 (en) * | 1979-07-20 | 1984-03-28 | The Dow Chemical Company | Process for recovering 2,3,5,6-tetrachloropyridine from mixtures of chlorinated pyridines |
| EP0030214B1 (de) | 1979-11-30 | 1985-01-30 | Ciba-Geigy Ag | Verfahren zur Herstellung von 2,3,5,6-Tetrachlorpyridin und 3,5,6-Trichlorpyridin-2-ol |
| US4360676A (en) | 1979-11-30 | 1982-11-23 | Ciba-Geigy Corporation | 3,3,5-Trichloroglutaric acid imide |
| US4309548A (en) * | 1981-01-19 | 1982-01-05 | The Dow Chemical Company | Chlorination of 2-chloro-5-trichloromethylpyridine |
| US4331811A (en) * | 1981-03-12 | 1982-05-25 | The Dow Chemical Company | Preparation of 2,3-dichloro-5-trichloromethylpyridine |
| US4564681A (en) * | 1982-09-24 | 1986-01-14 | Kalama Chemical, Inc. | Production of mixtures rich in 3-chloro-2-trichloromethyl pyridine |
| US4563531A (en) * | 1982-09-24 | 1986-01-07 | Kalama Chemical Inc. | Process for producing 2,3,5-trichloropyridine |
| US4577027A (en) * | 1982-09-24 | 1986-03-18 | Kalama Chemical, Inc. | Production of polychlorinated pyridine mixtures by direct liquid phase chlorination of alpha-picoline |
| US4517369A (en) * | 1982-09-29 | 1985-05-14 | Kalama Chemical, Inc. | Preparation of mixtures rich in 3,4,5,6-tetrachloro-2-trichloromethyl pyridine |
| US4701532A (en) * | 1983-03-25 | 1987-10-20 | The Dow Chemical Company | Method of selectively chlorinating 2-chloro-5-(trichloromethyl) pyridine in the 3-position |
| FR2569191B1 (fr) * | 1984-08-20 | 1987-07-10 | Solvay | Procede pour la preparation de derives chlores de composes pyridiniques et initiateurs radicalaires utilises dans ce procede |
| US4849523A (en) * | 1986-01-10 | 1989-07-18 | The Dow Chemical Company | Preparation of 2,3,4,6-tetrachloropyridine |
| US4705859A (en) * | 1986-07-22 | 1987-11-10 | The Dow Chemical Company | Polychloropyridine production from polychloro-2,3-lutidines |
| US4785112A (en) * | 1987-05-13 | 1988-11-15 | The Dow Chemical Company | Process for the production of 2,3,5,6-tetrachloropyridine and 2,3,6-trichloropyridine |
| JPH07116151B2 (ja) * | 1987-07-20 | 1995-12-13 | ダイセル化学工業株式会社 | ２，６−ジクロロピリジンの製造法 |
| EP0311050A3 (en) * | 1987-10-09 | 1990-05-30 | Daicel Chemical Industries, Ltd. | Process of preparing 2-chloropyridine and/or 2,6-dichloropyridine |
| US5229520A (en) * | 1991-10-22 | 1993-07-20 | Dowelanco | Polychlorodipyridoimidazolium compounds and their use in the preparation of pentachloropyridine |
| 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 |
| US5468864A (en) * | 1994-02-03 | 1995-11-21 | Olin Corporation | Process for preparing 2,6-dichloropyridine |
-
1962
- 1962-10-18 US US231581A patent/US3186994A/en not_active Expired - Lifetime
-
1963
- 1963-10-02 GB GB38761/63A patent/GB991526A/en not_active Expired
-
1964
- 1964-12-31 BE BE657822A patent/BE657822A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB991526A (en) | 1965-05-12 |
| US3186994A (en) | 1965-06-01 |