RU2008104259A - METHOD FOR PRODUCING CHLOROSubstituted Aryloxycarboxylic Acids - Google Patents
METHOD FOR PRODUCING CHLOROSubstituted Aryloxycarboxylic Acids Download PDFInfo
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- RU2008104259A RU2008104259A RU2008104259/04A RU2008104259A RU2008104259A RU 2008104259 A RU2008104259 A RU 2008104259A RU 2008104259/04 A RU2008104259/04 A RU 2008104259/04A RU 2008104259 A RU2008104259 A RU 2008104259A RU 2008104259 A RU2008104259 A RU 2008104259A
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- carried out
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- acids
- mechanical action
- calcium hypochlorite
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1. Способ получения хлорзамещенных арилоксикарбоновых кислот путем хлорирования соответствующих кислот или их солей с последующим выделением целевого продукта, отличающийся тем, что в качестве хлорирующего средства используется гипохлорит кальция, а активацию процесса осуществляют механическим воздействием. ! 2. Способ по п.1, отличающийся тем, что механическое воздействие осуществляют в любом аппарате, способном производить ударную или ударно-сдвиговую нагрузку на смесь твердых реагентов. ! 3. Способ по п.1, отличающийся тем, что гипохлорит кальция вводят в реакцию дробно. ! 4. Способ по п..1,отличающийся тем, что процесс осуществляют в присутствии катализатора, в качестве которого используют кислоты Льюиса. ! 5. Способ по любому из пп.1-4, отличающийся тем, что процесс осуществляют при температуре окружающей среды и атмосферном давлении. ! 6. Способ по п.5, отличающийся тем, что процесс осуществляют в течение 10-30 мин.1. The method of producing chlorine-substituted aryloxycarboxylic acids by chlorination of the corresponding acids or their salts, followed by isolation of the target product, characterized in that calcium hypochlorite is used as the chlorinating agent, and the process is activated by mechanical action. ! 2. The method according to claim 1, characterized in that the mechanical action is carried out in any apparatus capable of producing an impact or shock-shear load on a mixture of solid reagents. ! 3. The method according to claim 1, characterized in that the calcium hypochlorite is introduced fractionally into the reaction. ! 4. The method according to p. 1, characterized in that the process is carried out in the presence of a catalyst, which is used as Lewis acids. ! 5. The method according to any one of claims 1 to 4, characterized in that the process is carried out at ambient temperature and atmospheric pressure. ! 6. The method according to claim 5, characterized in that the process is carried out for 10-30 minutes
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008104259/04A RU2380350C2 (en) | 2008-02-04 | 2008-02-04 | Method of producing chlorine-substituted aryloxycarboxylic acids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008104259/04A RU2380350C2 (en) | 2008-02-04 | 2008-02-04 | Method of producing chlorine-substituted aryloxycarboxylic acids |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2008104259A true RU2008104259A (en) | 2009-08-10 |
| RU2380350C2 RU2380350C2 (en) | 2010-01-27 |
Family
ID=41049161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2008104259/04A RU2380350C2 (en) | 2008-02-04 | 2008-02-04 | Method of producing chlorine-substituted aryloxycarboxylic acids |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2380350C2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109053409A (en) * | 2017-06-13 | 2018-12-21 | 江西天宇化工有限公司 | A kind of preparation method of 2,4-D |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103304405B (en) * | 2013-06-26 | 2015-09-16 | 山东潍坊润丰化工股份有限公司 | A kind of method of selective chlorination |
| RU2684114C1 (en) * | 2018-10-16 | 2019-04-04 | Борис Павлович Струнин | Method for producing 2,4-dichlorophenoxyacetic acid |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1116266A (en) * | 1954-12-10 | 1956-05-07 | Process for preparing pure 2-methyl 4-chloro phenoxy acetic acid |
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2008
- 2008-02-04 RU RU2008104259/04A patent/RU2380350C2/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109053409A (en) * | 2017-06-13 | 2018-12-21 | 江西天宇化工有限公司 | A kind of preparation method of 2,4-D |
| CN109053409B (en) * | 2017-06-13 | 2021-12-24 | 江西天宇化工有限公司 | Preparation method of 2,4-D |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2380350C2 (en) | 2010-01-27 |
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| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20190205 |