GB571628A - Production of unsubstituted or ª‡,ª‡-substituted ª‰,ª‰-thiodihydracrylic acids - Google Patents
Production of unsubstituted or ª‡,ª‡-substituted ª‰,ª‰-thiodihydracrylic acidsInfo
- Publication number
- GB571628A GB571628A GB18156/43A GB1815643A GB571628A GB 571628 A GB571628 A GB 571628A GB 18156/43 A GB18156/43 A GB 18156/43A GB 1815643 A GB1815643 A GB 1815643A GB 571628 A GB571628 A GB 571628A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acids
- substituted
- unsubstituted
- sulphide
- thiodihydracrylic
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C323/00—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
Unsubstituted or a ,a 1-substituted b ,b 1-thiodipropionic acids are prepared by reacting an unsubstituted or a -substituted a ,b -unsaturated aliphatic acid in aqueous solution with an alkali metal sulphide and acidifying to liberate the acids. In the example, aqueous acrylic acid was added to sodium sulphide, excess sulphide being added near the end of the reaction to ensure alkaline conditions. On completion of the reaction, the mixture was acidified to obtain the free acid. Other a -substituted a ,b -unsaturated acids such as methacrylic and ethacrylic may be used. The b ,b 1-thiodipropionic acids may be used in organic syntheses and as rubber plasticizers in the form of their esters.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US571628XA | 1942-08-29 | 1942-08-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB571628A true GB571628A (en) | 1945-09-03 |
Family
ID=22008878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18156/43A Expired GB571628A (en) | 1942-08-29 | 1943-11-02 | Production of unsubstituted or ª‡,ª‡-substituted ª‰,ª‰-thiodihydracrylic acids |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB571628A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798278A (en) * | 2010-04-07 | 2010-08-11 | 天津力生化工有限公司 | Method for preparing thiodipropionic acid |
| CN106008296A (en) * | 2016-06-13 | 2016-10-12 | 重庆紫光化工股份有限公司 | Thiodipropionic acid clean synthesizing technology |
| CN114890925A (en) * | 2022-05-10 | 2022-08-12 | 天津力生化工有限公司 | Production process for inhibiting generation of acrylic polymer in thiodipropionic acid production process |
-
1943
- 1943-11-02 GB GB18156/43A patent/GB571628A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798278A (en) * | 2010-04-07 | 2010-08-11 | 天津力生化工有限公司 | Method for preparing thiodipropionic acid |
| CN106008296A (en) * | 2016-06-13 | 2016-10-12 | 重庆紫光化工股份有限公司 | Thiodipropionic acid clean synthesizing technology |
| CN106008296B (en) * | 2016-06-13 | 2018-06-29 | 重庆紫光化工股份有限公司 | A kind of thio-2 acid clean synthesis process |
| CN114890925A (en) * | 2022-05-10 | 2022-08-12 | 天津力生化工有限公司 | Production process for inhibiting generation of acrylic polymer in thiodipropionic acid production process |
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