IL70659A - Process for the preparation of 2,3-dihalo pyridines - Google Patents
Process for the preparation of 2,3-dihalo pyridinesInfo
- Publication number
- IL70659A IL70659A IL70659A IL7065984A IL70659A IL 70659 A IL70659 A IL 70659A IL 70659 A IL70659 A IL 70659A IL 7065984 A IL7065984 A IL 7065984A IL 70659 A IL70659 A IL 70659A
- Authority
- IL
- Israel
- Prior art keywords
- dihalo
- pyridines
- preparation
- dihalo pyridines
- 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)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/436,231 US4435573A (en) | 1982-10-25 | 1982-10-25 | Process for the preparation of substituted pyridines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IL70659A true IL70659A (en) | 1987-08-31 |
Family
ID=23731634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL70659A IL70659A (en) | 1982-10-25 | 1984-01-11 | Process for the preparation of 2,3-dihalo pyridines |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4435573A (pt) |
| EP (1) | EP0149291B1 (pt) |
| JP (1) | JPS60152466A (pt) |
| KR (1) | KR900004040B1 (pt) |
| BR (1) | BR8400598A (pt) |
| DE (1) | DE3471302D1 (pt) |
| DK (1) | DK157014C (pt) |
| HU (1) | HU194173B (pt) |
| IL (1) | IL70659A (pt) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0113467B1 (de) * | 1980-08-27 | 1986-04-30 | Ciba-Geigy Ag | 2,2-Dichlor-3,3,3-trifluorpropionaldehyd und Verfahren zu seiner Herstellung |
| US4577028A (en) * | 1981-10-20 | 1986-03-18 | Ciba-Geigy Corporation | 5-Haloalkyl-pyridines |
| US4435573A (en) * | 1982-10-25 | 1984-03-06 | The Dow Chemical Company | Process for the preparation of substituted pyridines |
| US5053516A (en) * | 1984-05-23 | 1991-10-01 | Ici Americas Inc. | Synthesis of 2-substituted-5-methylpyridines from methylcyclobutanecarbonitrile, valeronitrile and pentenonitrile intermediates |
| US5084576A (en) * | 1985-12-20 | 1992-01-28 | The Dow Chemical Company | 2-hydrocarbyl-3,6-dichloropyridine compounds |
| US5106984A (en) * | 1985-12-20 | 1992-04-21 | The Dow Chemical Company | 2-hydrocarbyl-3,6-dichloropyridines and their preparation |
| IL86341A (en) * | 1988-05-11 | 1992-02-16 | Pamol Ltd | Preparation of polychloropyridine derivatives and intermediates therefor |
| US4996323A (en) * | 1989-05-12 | 1991-02-26 | The Dow Chemical Company | Process for the preparation of 3,5,6-trichloropyridin-2-ol |
| US5229519A (en) * | 1992-03-06 | 1993-07-20 | Reilly Industries, Inc. | Process for preparing 2-halo-5-halomethylpyridines |
| CN113402452B (zh) * | 2021-07-29 | 2022-08-02 | 上海垚翀化工科技有限公司 | 一种制备2-氯-5-取代吡啶的方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4245098A (en) * | 1978-12-05 | 1981-01-13 | Ciba-Geigy Corporation | Process for producing 2,3,5-trichloropyridine, 2,4,4-trichloro-4-formyl-butyronitrile as a novel compound and a process for producing it |
| EP0113467B1 (de) * | 1980-08-27 | 1986-04-30 | Ciba-Geigy Ag | 2,2-Dichlor-3,3,3-trifluorpropionaldehyd und Verfahren zu seiner Herstellung |
| JPS5772967A (en) * | 1980-08-27 | 1982-05-07 | Ciba Geigy Ag | Manufacture of chloropyridine substituted by methyl group, trichloromethyl or trifluoromethyl group, intermediate therefor and manufacture of intermediate |
| US4435573A (en) * | 1982-10-25 | 1984-03-06 | The Dow Chemical Company | Process for the preparation of substituted pyridines |
-
1982
- 1982-10-25 US US06/436,231 patent/US4435573A/en not_active Expired - Lifetime
-
1984
- 1984-01-11 IL IL70659A patent/IL70659A/xx not_active IP Right Cessation
- 1984-01-16 DK DK017784A patent/DK157014C/da not_active IP Right Cessation
- 1984-01-16 DE DE8484300241T patent/DE3471302D1/de not_active Expired
- 1984-01-16 EP EP84300241A patent/EP0149291B1/en not_active Expired
- 1984-01-19 HU HU84202A patent/HU194173B/hu not_active IP Right Cessation
- 1984-01-20 JP JP59008402A patent/JPS60152466A/ja active Granted
- 1984-01-24 KR KR1019840000294A patent/KR900004040B1/ko not_active IP Right Cessation
- 1984-02-07 BR BR8400598A patent/BR8400598A/pt not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| HU194173B (en) | 1988-01-28 |
| US4435573A (en) | 1984-03-06 |
| KR850003397A (ko) | 1985-06-17 |
| EP0149291B1 (en) | 1988-05-18 |
| JPS60152466A (ja) | 1985-08-10 |
| DK157014B (da) | 1989-10-30 |
| DK17784D0 (da) | 1984-01-16 |
| DK17784A (da) | 1985-07-17 |
| BR8400598A (pt) | 1985-09-17 |
| KR900004040B1 (ko) | 1990-06-09 |
| DK157014C (da) | 1990-03-26 |
| EP0149291A1 (en) | 1985-07-24 |
| HUT36803A (en) | 1985-10-28 |
| DE3471302D1 (en) | 1988-06-23 |
| JPH0518827B2 (pt) | 1993-03-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| KB | Patent renewed | ||
| EXP | Patent expired |