JPS56138140A - Preparation of 2- p-halomethylphenyl propionic acid or its ester - Google Patents
Preparation of 2- p-halomethylphenyl propionic acid or its esterInfo
- Publication number
- JPS56138140A JPS56138140A JP4129180A JP4129180A JPS56138140A JP S56138140 A JPS56138140 A JP S56138140A JP 4129180 A JP4129180 A JP 4129180A JP 4129180 A JP4129180 A JP 4129180A JP S56138140 A JPS56138140 A JP S56138140A
- Authority
- JP
- Japan
- Prior art keywords
- condensing agent
- ester
- readily
- propionic acid
- formula
- 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 titled compound useful as an intermediate for an anti- inflammatory of a propionic acid compound, in high yield, safely and readily, by the reaction of 2-phenylpropionic acid or its ester with a dialkoxymethane in the presence of a condensing agent.
CONSTITUTION: A compound expressed by the formula I (R1 is H or alkyl) is reacted with a compound expressed by the formula II (R2 is alkyl) having no fear of carcinogenicity, in the presence of a condensing agent containing halogen, to give a compound expressed by formula III from readily available or synthesizable raw materials in high yield and readily with no danger in handling. A Friedel-Crafts catalyst containing halogen, a Lewis acid, protonic acid, preferably aluminum chloride, tin tetrachloride, and aluminum bromide may be used as the condensing agent.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4129180A JPS56138140A (en) | 1980-03-31 | 1980-03-31 | Preparation of 2- p-halomethylphenyl propionic acid or its ester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4129180A JPS56138140A (en) | 1980-03-31 | 1980-03-31 | Preparation of 2- p-halomethylphenyl propionic acid or its ester |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56138140A true JPS56138140A (en) | 1981-10-28 |
JPS6334856B2 JPS6334856B2 (en) | 1988-07-12 |
Family
ID=12604337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4129180A Granted JPS56138140A (en) | 1980-03-31 | 1980-03-31 | Preparation of 2- p-halomethylphenyl propionic acid or its ester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56138140A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4567293A (en) * | 1981-10-14 | 1986-01-28 | Kureha Kagaku Kogyo Kabushiki Kaisha | 2-[Para-(2-substituted or unsubstituted-3,3,3-tri-fluoropropyl)phenyl]propionic acid or a salt thereof |
EP0889020A1 (en) * | 1997-07-04 | 1999-01-07 | Kolon Industries, Inc. | A process for the production of benzene derivatives |
KR19990015050A (en) * | 1997-08-01 | 1999-03-05 | 구광시 | Method for preparing phenylpropionic acid derivative |
KR100448641B1 (en) * | 1997-08-01 | 2004-11-16 | 주식회사 코오롱 | Method for producing phenyl propionic acid derivatives from 2-phenylpropionic acid by simple processing steps with high yield |
KR100448642B1 (en) * | 1997-08-01 | 2004-11-16 | 주식회사 코오롱 | Method for producing phenyl propionic acid derivatives from 2-phenylpropionic acid by simple processing steps with high yield and purity |
KR100448640B1 (en) * | 1997-08-01 | 2004-11-16 | 주식회사 코오롱 | Method for producing phenyl propionic acid derivatives with high yield and purity |
CN106349051A (en) * | 2016-08-25 | 2017-01-25 | 宁波博撷化学科技有限公司 | Preparation method of methyl 2-(4-chloromethylphenyl)propionate |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63167550U (en) * | 1987-04-22 | 1988-11-01 |
-
1980
- 1980-03-31 JP JP4129180A patent/JPS56138140A/en active Granted
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4567293A (en) * | 1981-10-14 | 1986-01-28 | Kureha Kagaku Kogyo Kabushiki Kaisha | 2-[Para-(2-substituted or unsubstituted-3,3,3-tri-fluoropropyl)phenyl]propionic acid or a salt thereof |
EP0889020A1 (en) * | 1997-07-04 | 1999-01-07 | Kolon Industries, Inc. | A process for the production of benzene derivatives |
KR19990015050A (en) * | 1997-08-01 | 1999-03-05 | 구광시 | Method for preparing phenylpropionic acid derivative |
KR100448641B1 (en) * | 1997-08-01 | 2004-11-16 | 주식회사 코오롱 | Method for producing phenyl propionic acid derivatives from 2-phenylpropionic acid by simple processing steps with high yield |
KR100448642B1 (en) * | 1997-08-01 | 2004-11-16 | 주식회사 코오롱 | Method for producing phenyl propionic acid derivatives from 2-phenylpropionic acid by simple processing steps with high yield and purity |
KR100448640B1 (en) * | 1997-08-01 | 2004-11-16 | 주식회사 코오롱 | Method for producing phenyl propionic acid derivatives with high yield and purity |
CN106349051A (en) * | 2016-08-25 | 2017-01-25 | 宁波博撷化学科技有限公司 | Preparation method of methyl 2-(4-chloromethylphenyl)propionate |
Also Published As
Publication number | Publication date |
---|---|
JPS6334856B2 (en) | 1988-07-12 |
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