JPS56120667A - Preparation of chloro-beta-trifluoromethylpyridine - Google Patents
Preparation of chloro-beta-trifluoromethylpyridineInfo
- Publication number
- JPS56120667A JPS56120667A JP2431280A JP2431280A JPS56120667A JP S56120667 A JPS56120667 A JP S56120667A JP 2431280 A JP2431280 A JP 2431280A JP 2431280 A JP2431280 A JP 2431280A JP S56120667 A JPS56120667 A JP S56120667A
- Authority
- JP
- Japan
- Prior art keywords
- chloro
- fluoride
- diluting agent
- trifluoromethylpyridine
- picoline
- 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.)
- Granted
Links
Landscapes
- Pyridine Compounds (AREA)
Abstract
PURPOSE: To obtain the titled compound which is a raw material for agricultural chemicals, dyes, medicines, etc. in independent steps in a short time, by reacting a specific pyridine compound in the vapor phase with chlorine and anhydrous hydrogen fluoride in the presence a catalyst consisting of a fluoride of Co or Mn and a diluting agent.
CONSTITUTION: A pyridine compound expressed by formula I (X1 and Y1 are H or Cl), e.g. β-picoline or 2-chloro-β-picoline, in the vapor phase is reacted with chlorine and anhydrous hydrogen fluoride in the presence of a catalyst consisting of a fluoride of Co or Mn, e.g. CoF2 or MnF3, and a diluting agent, e.g. carbon tetrachloride or nitrogen, to give a chloro-β-trifluoromethylpyridine expressed by formula II (X2 and Y2 are H or Cl; however at least one is Cl). The amounts of the catalyst and the diluting agent are 0.001W3mol and 2W15mol based on one mole raw material respectively. The reaction temperature is 350W600°C.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2431280A JPS56120667A (en) | 1980-02-28 | 1980-02-28 | Preparation of chloro-beta-trifluoromethylpyridine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2431280A JPS56120667A (en) | 1980-02-28 | 1980-02-28 | Preparation of chloro-beta-trifluoromethylpyridine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56120667A true JPS56120667A (en) | 1981-09-22 |
JPS6130667B2 JPS6130667B2 (en) | 1986-07-15 |
Family
ID=12134654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2431280A Granted JPS56120667A (en) | 1980-02-28 | 1980-02-28 | Preparation of chloro-beta-trifluoromethylpyridine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56120667A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102875454A (en) * | 2012-10-17 | 2013-01-16 | 山东绿霸化工股份有限公司 | 2-chloro-5-tirfluoromethylpyridine and synthetic method thereof |
WO2018186460A1 (en) | 2017-04-04 | 2018-10-11 | 石原産業株式会社 | Method for purifying trifluoromethylpyridine compound |
EP3608310A1 (en) | 2018-08-07 | 2020-02-12 | Ishihara Sangyo Kaisha, Ltd. | Method for separating and purifying 2-chloro-3-trifluoromethylpyridine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63164487U (en) * | 1987-04-15 | 1988-10-26 |
-
1980
- 1980-02-28 JP JP2431280A patent/JPS56120667A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102875454A (en) * | 2012-10-17 | 2013-01-16 | 山东绿霸化工股份有限公司 | 2-chloro-5-tirfluoromethylpyridine and synthetic method thereof |
WO2018186460A1 (en) | 2017-04-04 | 2018-10-11 | 石原産業株式会社 | Method for purifying trifluoromethylpyridine compound |
US10882824B2 (en) | 2017-04-04 | 2021-01-05 | Ishihara Sangyo Kaisha, Ltd. | Method for purifying trifluoromethylpyridines |
EP3608310A1 (en) | 2018-08-07 | 2020-02-12 | Ishihara Sangyo Kaisha, Ltd. | Method for separating and purifying 2-chloro-3-trifluoromethylpyridine |
US10815198B2 (en) | 2018-08-07 | 2020-10-27 | Ishihara Sangyo Kaisha, Ltd. | Method for separating and purifying 2-chloro-3-trifluoromethylpyridine |
Also Published As
Publication number | Publication date |
---|---|
JPS6130667B2 (en) | 1986-07-15 |
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