JPS5636435A - Preparation of 2,6-dichloro-4-nitroaniline - Google Patents
Preparation of 2,6-dichloro-4-nitroanilineInfo
- Publication number
- JPS5636435A JPS5636435A JP11231079A JP11231079A JPS5636435A JP S5636435 A JPS5636435 A JP S5636435A JP 11231079 A JP11231079 A JP 11231079A JP 11231079 A JP11231079 A JP 11231079A JP S5636435 A JPS5636435 A JP S5636435A
- Authority
- JP
- Japan
- Prior art keywords
- nitroaniline
- acid
- titled compound
- reaction
- preparation
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To prepare the titled compound useful as an intermediate of azo dyes, etc., in high productivity, purity and yield, by adding the condensate of naphthalenesulfonic acid and formaldehyde to the system for the reaction of 4-nitroaniline with a chlorinating agent in concentrated hydrochloric acid.
CONSTITUTION: In the preparation of the titled compound by the reaction of 4- nitroaniline with a chlorinating agent in a concentrated hydrochloric acid, the productivity, purity and yield of the titled compound can be improved by adding e.g. an alkylbenzenesulfonic acid of formula I (n is 6W15; M is H, Na, K, or NH4) or its salt, an alkylnaphthalenesulfonic acid of formula II (n is 1W15) or its salt, or a condensate of an alkyl-substituted or unsubstituted (pref. unsubstituted) naphthalenesulfonic acid and formaldehyde of formula III (n is 1W4; R is H or lower alkyl), to the reaction system.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11231079A JPS5854136B2 (en) | 1979-08-31 | 1979-08-31 | Method for producing 2,6-dichloro-4-nitroaniline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11231079A JPS5854136B2 (en) | 1979-08-31 | 1979-08-31 | Method for producing 2,6-dichloro-4-nitroaniline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5636435A true JPS5636435A (en) | 1981-04-09 |
| JPS5854136B2 JPS5854136B2 (en) | 1983-12-02 |
Family
ID=14583467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11231079A Expired JPS5854136B2 (en) | 1979-08-31 | 1979-08-31 | Method for producing 2,6-dichloro-4-nitroaniline |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5854136B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61194053A (en) * | 1985-02-22 | 1986-08-28 | チバ‐ガイギ アクチエンゲゼルシヤフト | Manufacture of chloronitroaniline and chloronitrophenol |
| US5068443A (en) * | 1990-06-01 | 1991-11-26 | Noram Chemical Company | Process for the manufacture of 2,6-dichloro-4-nitroaniline |
-
1979
- 1979-08-31 JP JP11231079A patent/JPS5854136B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61194053A (en) * | 1985-02-22 | 1986-08-28 | チバ‐ガイギ アクチエンゲゼルシヤフト | Manufacture of chloronitroaniline and chloronitrophenol |
| US5068443A (en) * | 1990-06-01 | 1991-11-26 | Noram Chemical Company | Process for the manufacture of 2,6-dichloro-4-nitroaniline |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5854136B2 (en) | 1983-12-02 |
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