JPS5726652A - Reduction of nitrobenzoic acid - Google Patents
Reduction of nitrobenzoic acidInfo
- Publication number
- JPS5726652A JPS5726652A JP10059180A JP10059180A JPS5726652A JP S5726652 A JPS5726652 A JP S5726652A JP 10059180 A JP10059180 A JP 10059180A JP 10059180 A JP10059180 A JP 10059180A JP S5726652 A JPS5726652 A JP S5726652A
- Authority
- JP
- Japan
- Prior art keywords
- nitrobenzoic acid
- acid compound
- formula
- inorganic base
- hydrazine hydrate
- 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
Abstract
PURPOSE: To prepare an aminobenzoic acid compound, easily, in high yield, by neutralizing a nitrobenzoic acid compound in an inorganic base, and reducing the resulted carboxylic acid salt with hydrazine hydrate in the presence of an inexpensive hydrogenation catalyst.
CONSTITUTION: A nitrobenzoic acid compound of formula I (n is 1 or 2; the aromatic nucleus may have Cl, OH or methoxy group as substituent) is neutralized in an inorganic base such as caustic soda, caustic potash, quick lime, etc. to the carboxylic acid salt, which is reduced with hydrazine hydrate (50W100% concentration) in a solvent such as methanol, ethanol, etc. in the presence of a catalyst (e.g. Raney-Ni, iron powder, iron salt-carbon, ferric oxyhydroxide, etc.) at 40W110°C, pref. 60W90°C to obtain the objective compound of formula II.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10059180A JPS5726652A (en) | 1980-07-24 | 1980-07-24 | Reduction of nitrobenzoic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10059180A JPS5726652A (en) | 1980-07-24 | 1980-07-24 | Reduction of nitrobenzoic acid |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5726652A true JPS5726652A (en) | 1982-02-12 |
JPS6353183B2 JPS6353183B2 (en) | 1988-10-21 |
Family
ID=14278109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10059180A Granted JPS5726652A (en) | 1980-07-24 | 1980-07-24 | Reduction of nitrobenzoic acid |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5726652A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003533497A (en) * | 2000-05-17 | 2003-11-11 | シンジェンタ パーティシペーションズ アクチェンゲゼルシャフト | Method for producing aniline compound |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51127040A (en) * | 1975-04-28 | 1976-11-05 | Uop Inc | Hydrogenating method of nitro benzoic acid |
-
1980
- 1980-07-24 JP JP10059180A patent/JPS5726652A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51127040A (en) * | 1975-04-28 | 1976-11-05 | Uop Inc | Hydrogenating method of nitro benzoic acid |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003533497A (en) * | 2000-05-17 | 2003-11-11 | シンジェンタ パーティシペーションズ アクチェンゲゼルシャフト | Method for producing aniline compound |
Also Published As
Publication number | Publication date |
---|---|
JPS6353183B2 (en) | 1988-10-21 |
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