JPS6438072A - Production of 4-aminopyridines - Google Patents
Production of 4-aminopyridinesInfo
- Publication number
- JPS6438072A JPS6438072A JP19230287A JP19230287A JPS6438072A JP S6438072 A JPS6438072 A JP S6438072A JP 19230287 A JP19230287 A JP 19230287A JP 19230287 A JP19230287 A JP 19230287A JP S6438072 A JPS6438072 A JP S6438072A
- Authority
- JP
- Japan
- Prior art keywords
- compound
- formula
- reacting
- aryl iodide
- solvent
- 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.)
- Pending
Links
Landscapes
- Pyridine Compounds (AREA)
Abstract
PURPOSE:To safely produce the titled compound useful as a synthetic intermediate for N-(2-chloro-4-pyridyl) ureas which are plant growth regulators, in high yield at a low cost, by using isonicotinamide as a raw material and reacting with a trivalent aryl iodide compound. CONSTITUTION:The objective compound of formula III can be produced by reacting a compound of formula I (X is H or halogen) with a trivalent aryl iodide compound of formula II (Ar is aryl; A and B are same or different group eliminable as anion or together form O) in a solvent (e.g. water or acetonitrile) usually at 10-60 deg.C. The concentration of the compound of formula I in the reaction solvent is preferably 1-20% (W/V). The amount of the compound of formula II is 1.0-2.0mol., preferably 1.0-1.2mol. per 1mol. of the compound of formula I. The compound of formula II can be synthesized e.g. by reacting a univalent aryl iodide with chlorine.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19230287A JPS6438072A (en) | 1987-07-31 | 1987-07-31 | Production of 4-aminopyridines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19230287A JPS6438072A (en) | 1987-07-31 | 1987-07-31 | Production of 4-aminopyridines |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6438072A true JPS6438072A (en) | 1989-02-08 |
Family
ID=16289014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19230287A Pending JPS6438072A (en) | 1987-07-31 | 1987-07-31 | Production of 4-aminopyridines |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6438072A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4966506A (en) * | 1990-03-05 | 1990-10-30 | Stillwater Technologies, Inc. | Welding tip dresser |
US5335705A (en) * | 1991-09-27 | 1994-08-09 | Toshiba Machine Co., Ltd. | Apparatus for dispensing a sparkling or bubbling beverage |
US5401127A (en) * | 1992-07-31 | 1995-03-28 | Honda Giken Kogyo Kabushiki Kaisha | Rotative cutting tool of tip dresser |
WO2012095691A1 (en) | 2011-01-15 | 2012-07-19 | Jubilant Life Sciences Ltd. | An improved process for producing aminopyridines |
-
1987
- 1987-07-31 JP JP19230287A patent/JPS6438072A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4966506A (en) * | 1990-03-05 | 1990-10-30 | Stillwater Technologies, Inc. | Welding tip dresser |
US5335705A (en) * | 1991-09-27 | 1994-08-09 | Toshiba Machine Co., Ltd. | Apparatus for dispensing a sparkling or bubbling beverage |
US5401127A (en) * | 1992-07-31 | 1995-03-28 | Honda Giken Kogyo Kabushiki Kaisha | Rotative cutting tool of tip dresser |
WO2012095691A1 (en) | 2011-01-15 | 2012-07-19 | Jubilant Life Sciences Ltd. | An improved process for producing aminopyridines |
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