Method for producing fluorinated organic compounds
US-2015361014-A1 · Dec 17, 2015 · US
Method for producing 1,1-dibromo-1-fluoroethane
US9593058B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9593058-B2 |
| Application number | US-201414915677-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 3, 2014 |
| Priority date | Sep 3, 2013 |
| Publication date | Mar 14, 2017 |
| Grant date | Mar 14, 2017 |
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Abstract
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An object of the present invention is to provide a production method that makes it possible to produce 1,1-dibromo-1-fluoroethane easily and sustainably. The present invention provides a method for producing 1,1-dibromo-1-fluoroethane, the method comprising step A of reacting 1,1-dibromoethylene with hydrogen fluoride to obtain 1,1-dibromo-1-fluoroethane.
First claim
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The invention claimed is: 1. A method for producing 1,1-dibromo-1-fluoroethane, the method comprising step A of reacting 1,1-dibromoethylene with hydrogen fluoride to obtain 1,1-dibromo-1-fluoroethane. 2. The method according to claim 1 , wherein the reaction of step A is performed in the presence of an amine. 3. The method according to claim 1 , wherein 1,1-dibromoethylene is produced by a production method comprising step B of reacting 1,1,1-trihaloethane with an aluminum halide having one or more bromine atoms to obtain 1,1,1-tribromoethane and step C of dehydrobrominating 1,1,1-tribromoethane using a base to obtain 1,1-dibromoethylene. 4. The method according to claim 3 , wherein 1,1,1-trihaloethane is 1,1,1-trichloroethane. 5. A method for producing 1-bromo-1-fluoroethylene, the method comprising step D of dehydrobrominating 1,1-dibromo-1-fluoroethane obtained by the method according to claim 1 to obtain 1-bromo-1-fluoroethylene. 6. The method according to claim 2 , wherein 1,1-dibromoethylene is produced by a production method comprising step B of reacting 1,1,1-trihaloethane with an aluminum halide having one or more bromine atoms to obtain 1,1,1-tribromoethane and step C of dehydrobrominating 1,1,1-tribromoethane using a base to obtain 1,1-dibromoethylene. 7. The method according to claim 6 , wherein 1,1,1-trihaloethane is 1,1,1-trichloroethane. 8. A method for producing 1-bromo-1-fluoroethylene, the method comprising step D of dehydrobrominating 1,1-dibromo-1-fluoroethane obtained by the method according to claim 2 to obtain 1-bromo-1-fluoroethylene. 9. A method for producing 1-bromo-1-fluoroethylene, the method comprising step D of dehydrobrominating 1,1-dibromo-1-fluoroethane obtained by the method according to claim 3 to obtain 1-bromo-1-fluoroethylene. 10. A method for producing 1-bromo-1-fluoroethylene, the method comprising step D of dehydrobrominating 1,1-dibromo-1-fluoroethane obtained by the method according to claim 6 to obtain 1-bromo-1-fluoroethylene. 11. A method for producing 1-bromo-1-fluoroethylene, the method comprising step D of dehydrobrominating 1,1-dibromo-1-fluoroethane obtained by the method according to claim 4 to obtain 1-bromo-1-fluoroethylene. 12. A method for producing 1-bromo-1-fluoroethylene, the method comprising step D of dehydrobrominating 1,1-dibromo-1-fluoroethane obtained by the method according to claim 7 to obtain 1-bromo-1-fluoroethylene.
Assignees
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Classifications
- C07C17/087Primary
to unsaturated halogenated hydrocarbons · CPC title
containing fluorine · CPC title
and bromine · CPC title
- C07C17/25Primary
by splitting-off hydrogen halides from halogenated hydrocarbons · CPC title
containing bromine · CPC title
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Frequently asked questions
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- What does patent US9593058B2 cover?
- An object of the present invention is to provide a production method that makes it possible to produce 1,1-dibromo-1-fluoroethane easily and sustainably. The present invention provides a method for producing 1,1-dibromo-1-fluoroethane, the method comprising step A of reacting 1,1-dibromoethylene with hydrogen fluoride to obtain 1,1-dibromo-1-fluoroethane.
- Who is the assignee on this patent?
- Daikin Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification C07C17/087. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 14 2017 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).