JPS5690017A - Preparation of organic bromide - Google Patents
Preparation of organic bromideInfo
- Publication number
- JPS5690017A JPS5690017A JP16659079A JP16659079A JPS5690017A JP S5690017 A JPS5690017 A JP S5690017A JP 16659079 A JP16659079 A JP 16659079A JP 16659079 A JP16659079 A JP 16659079A JP S5690017 A JPS5690017 A JP S5690017A
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen halide
- bromine
- brominating
- halide solution
- solution
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To obtain an organic bromide useful as an intermediate of pharmaceuticals and pesticides, in high purity and yield, stably, by brominating an unsaturated organic compound in the presence of a hydrogen halide solution under mild conditions.
CONSTITUTION: An organic bromine compound is prepared by brominating an unsaturated organic compound (e.g. methyl 3-pentenoate, n-butyl methacrylate, etc.) in the presence of a solution of a hydrogen halide (e.g. hydrobromic acid). The reaction temperature is ≤150°C, and lower the better. When the bromination is carried out with bromine dissolved in the hydrogen halide solution, the side reactions can be suppressed because the bromine forms a complex having lower activity and acts as a homogeneous system. The hydrogen halide solution can be recovered and reused.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16659079A JPS5690017A (en) | 1979-12-21 | 1979-12-21 | Preparation of organic bromide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16659079A JPS5690017A (en) | 1979-12-21 | 1979-12-21 | Preparation of organic bromide |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5690017A true JPS5690017A (en) | 1981-07-21 |
Family
ID=15834092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16659079A Pending JPS5690017A (en) | 1979-12-21 | 1979-12-21 | Preparation of organic bromide |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5690017A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003080555A1 (en) | 2002-02-28 | 2003-10-02 | Sumitomo Chemical Company, Limited | Process for producing chromone compound |
-
1979
- 1979-12-21 JP JP16659079A patent/JPS5690017A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003080555A1 (en) | 2002-02-28 | 2003-10-02 | Sumitomo Chemical Company, Limited | Process for producing chromone compound |
US7094914B2 (en) | 2002-02-28 | 2006-08-22 | Sumitomo Chemical Company, Limited | Process for producing chromone compound |
EP2105431A1 (en) | 2002-02-28 | 2009-09-30 | Sumitomo Chemical Company, Limited | Process for Producing Chromone Compound |
EP2105432A1 (en) | 2002-02-28 | 2009-09-30 | Sumitomo Chemical Company, Limited | Process for Producing Chromone Compound |
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