Process to produce a mono vinyl thioether
US-2022144767-A1 · May 12, 2022 · US
Process to produce a mono vinyl thioether
US11440876B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11440876-B2 |
| Application number | US-202017607017-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 20, 2020 |
| Priority date | Apr 29, 2019 |
| Publication date | Sep 13, 2022 |
| Grant date | Sep 13, 2022 |
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- Title
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Abstract
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A process produces a mono vinyl thioether by reacting acetylene with a compound containing one thiol group and one hydroxy group, referred to as a thiol-hydroxy compound, where the reaction is performed at a pressure below 2 bars.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process to produce a mono vinyl thioether, the process comprising: reacting acetylene with a thiol-hydroxy compound comprising one thiol group and one hydroxy group, wherein the reaction is performed at a pressure below 2 bars. 2. The process according to claim 1 , wherein the thiol-hydroxy compound is a compound of formula I: HS—R—OH wherein R is a linear or branched aliphatic hydrocarbon group which may comprise oxygen in the form of ether groups. 3. The process according to claim 1 , wherein the thiol-hydroxy compound is 2-hydroxy-ethane-1-thiol. 4. The process according to claim 1 , wherein the process is a process to produce vinyl thioethanol of formula: H 2 C═CH—S—CH 2 —CH 2 —OH. 5. The process according to claim 1 , wherein the reaction is performed in presence of a catalyst. 6. The process according to claim 5 , wherein the catalyst is an alkali salt of the thiol-hydroxy compound. 7. The process according to claim 5 , wherein the catalyst is used in an amount of 0.1 to 10 parts by weight per 100 parts by weight of the thiol-hydroxy compound. 8. The process according to claim 1 , wherein the reaction is performed at a pressure below 1.5 bars. 9. The process according to claim 1 , wherein the acetylene is fed directly into a liquid phase comprising the thiol-hydroxy compound and any products already formed. 10. The process according to claim 1 , wherein the acetylene is fed continuously to a reactor and unreacted acetylene as well as any other gaseous compounds are withdrawn from the reactor while the pressure is kept below 2 bars.
Assignees
Inventors
Classifications
- C07C323/14Primary
the carbon skeleton being acyclic and unsaturated · CPC title
- C07C319/20Primary
by reactions not involving the formation of sulfide groups · CPC title
by addition of thiols to unsaturated compounds · CPC title
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Frequently asked questions
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- What does patent US11440876B2 cover?
- A process produces a mono vinyl thioether by reacting acetylene with a compound containing one thiol group and one hydroxy group, referred to as a thiol-hydroxy compound, where the reaction is performed at a pressure below 2 bars.
- Who is the assignee on this patent?
- Basf Se
- What technology area does this patent fall under?
- Primary CPC classification C07C323/14. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 13 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).