JPS5673048A - Amination of dihydric phenol - Google Patents
Amination of dihydric phenolInfo
- Publication number
- JPS5673048A JPS5673048A JP14958079A JP14958079A JPS5673048A JP S5673048 A JPS5673048 A JP S5673048A JP 14958079 A JP14958079 A JP 14958079A JP 14958079 A JP14958079 A JP 14958079A JP S5673048 A JPS5673048 A JP S5673048A
- Authority
- JP
- Japan
- Prior art keywords
- phenol
- dihydric phenol
- ammonia
- amine
- liquid phase
- 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 an aminated dihydric phenol, in high selectivity and yield, by heating the corresponding dihydric phenol with ammonia or an amine in liquid phase in the presence of a phenol.
CONSTITUTION: An aminophenol compound or a phenylenediamine compound useful as an additive of pharmaceuticals, pesticides, dyes, rubber chemicals and synthetic resins, or their intermediate, is prepared by reacting a dihydric phenol (e.g. hydroquinone, resorcinol, etc.) with ≥0.5mol, based on 1mol of the phenol, of ammonia, a primary amine (e.g. methylamine) or a secondary amine (e.g. dimethylamine) in a liquid phase at 150W300°C, in the presence of a phenol (e.g. phenol, o-cresol, etc.). The phenylenediamine compound is also useful as a raw material for the production or modification of a special-purpose polyamide.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14958079A JPS5673048A (en) | 1979-11-20 | 1979-11-20 | Amination of dihydric phenol |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14958079A JPS5673048A (en) | 1979-11-20 | 1979-11-20 | Amination of dihydric phenol |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5673048A true JPS5673048A (en) | 1981-06-17 |
JPS625416B2 JPS625416B2 (en) | 1987-02-04 |
Family
ID=15478296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14958079A Granted JPS5673048A (en) | 1979-11-20 | 1979-11-20 | Amination of dihydric phenol |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5673048A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61215358A (en) * | 1985-03-19 | 1986-09-25 | Sumitomo Chem Co Ltd | Production of m-aminophenol |
JPH01265065A (en) * | 1988-04-14 | 1989-10-23 | Mitsui Toatsu Chem Inc | Method for aminating dihydric phenols |
WO1994021594A1 (en) * | 1993-03-19 | 1994-09-29 | Mitsui Petrochemical Industries, Ltd. | Process for producing n,n-disubstituted aminophenol |
WO2016158737A1 (en) * | 2015-03-27 | 2016-10-06 | 大塚製薬株式会社 | Method for producing 1-(4-hydroxyphenyl)-4-(4-trifluoromethoxyphenoxy)piperidine or salt thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4828429A (en) * | 1971-08-14 | 1973-04-14 |
-
1979
- 1979-11-20 JP JP14958079A patent/JPS5673048A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4828429A (en) * | 1971-08-14 | 1973-04-14 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61215358A (en) * | 1985-03-19 | 1986-09-25 | Sumitomo Chem Co Ltd | Production of m-aminophenol |
JPH0529024B2 (en) * | 1985-03-19 | 1993-04-28 | Sumitomo Chemical Co | |
JPH01265065A (en) * | 1988-04-14 | 1989-10-23 | Mitsui Toatsu Chem Inc | Method for aminating dihydric phenols |
WO1994021594A1 (en) * | 1993-03-19 | 1994-09-29 | Mitsui Petrochemical Industries, Ltd. | Process for producing n,n-disubstituted aminophenol |
US5442121A (en) * | 1993-03-19 | 1995-08-15 | Mitsui Petrochemical Industries Ltd. | Process for producing N,N-disubstituted aminophenol |
WO2016158737A1 (en) * | 2015-03-27 | 2016-10-06 | 大塚製薬株式会社 | Method for producing 1-(4-hydroxyphenyl)-4-(4-trifluoromethoxyphenoxy)piperidine or salt thereof |
JPWO2016158737A1 (en) * | 2015-03-27 | 2018-01-18 | 大塚製薬株式会社 | Process for producing 1- (4-hydroxyphenyl) -4- (4-trifluoromethoxyphenoxy) piperidine or a salt thereof |
US10252995B2 (en) | 2015-03-27 | 2019-04-09 | Otsuka Pharmaceutical Co., Ltd. | Method for producing 1-(4-hydroxyphenyl)-4-(4-trifluoromethoxyphenoxy)piperidine or salt thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS625416B2 (en) | 1987-02-04 |
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