JPS5690017A - Preparation of organic bromide - Google Patents

Preparation of organic bromide

Info

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
Application number
JP16659079A
Other languages
Japanese (ja)
Inventor
Takao Harada
Kenichi Murofushi
Kazutaro Koike
Chihiro Yazawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ihara Chemical Industry Co Ltd
Original Assignee
Ihara Chemical Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ihara Chemical Industry Co Ltd filed Critical Ihara Chemical Industry Co Ltd
Priority to JP16659079A priority Critical patent/JPS5690017A/en
Publication of JPS5690017A publication Critical patent/JPS5690017A/en
Pending legal-status Critical Current

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  • 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
JP16659079A 1979-12-21 1979-12-21 Preparation of organic bromide Pending JPS5690017A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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