JPS55102544A - Purification of diarylamine - Google Patents
Purification of diarylamineInfo
- Publication number
- JPS55102544A JPS55102544A JP906879A JP906879A JPS55102544A JP S55102544 A JPS55102544 A JP S55102544A JP 906879 A JP906879 A JP 906879A JP 906879 A JP906879 A JP 906879A JP S55102544 A JPS55102544 A JP S55102544A
- Authority
- JP
- Japan
- Prior art keywords
- diarylamine
- phenylenediamines
- metallic catalyst
- purification
- product
- 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 obtain the title compound useful as an intermediate for dyes, rubber chemicals, and medicines in high yield, by distilling the product prepared through oxidation of a diarylamine containing phenylenediamines in the presence of a metallic catalyst.
CONSTITUTION: A diarylamine, e.g. phenylamine, containing 0.001W2.0wt% of phenylenediamines, e.g. o-phenylenediamine, is oxidized with molecular oxygen, e.g. air, in the presence of 0.05W5.0wt% calculated as metal of a metallic catalyst, e.g. copper acetate or naphthenate. The resulting product is distilled or recrystallized to purify the diarylamine.
EFFECT: The purified product substantially free from phenylenediamines can be obtained by very simple procedures. Discoloration will not occur even on storage for a long time.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP906879A JPS5822469B2 (en) | 1979-01-31 | 1979-01-31 | Method for purifying diarylamine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP906879A JPS5822469B2 (en) | 1979-01-31 | 1979-01-31 | Method for purifying diarylamine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55102544A true JPS55102544A (en) | 1980-08-05 |
JPS5822469B2 JPS5822469B2 (en) | 1983-05-09 |
Family
ID=11710286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP906879A Expired JPS5822469B2 (en) | 1979-01-31 | 1979-01-31 | Method for purifying diarylamine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5822469B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5107024A (en) * | 1990-03-27 | 1992-04-21 | Atochem Agri, S.A. | Diphenylamine purification |
FR2689506A1 (en) * | 1992-04-06 | 1993-10-08 | Elf Atochem Agri Sa | Elimination of prim amine(s) from commercial di:phenylamine - by treatment with a sulphonic acid cation exchange resin |
-
1979
- 1979-01-31 JP JP906879A patent/JPS5822469B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5107024A (en) * | 1990-03-27 | 1992-04-21 | Atochem Agri, S.A. | Diphenylamine purification |
FR2689506A1 (en) * | 1992-04-06 | 1993-10-08 | Elf Atochem Agri Sa | Elimination of prim amine(s) from commercial di:phenylamine - by treatment with a sulphonic acid cation exchange resin |
Also Published As
Publication number | Publication date |
---|---|
JPS5822469B2 (en) | 1983-05-09 |
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