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US-2016319449-A1 · Nov 3, 2016 · US
Ammonium salt having saccharin anion
US11512061B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11512061-B2 |
| Application number | US-201917299486-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 29, 2019 |
| Priority date | Dec 14, 2018 |
| Publication date | Nov 29, 2022 |
| Grant date | Nov 29, 2022 |
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- Title
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Abstract
Official abstract text for this publication.
An ammonium salt having a saccharin anion, which is represented by formula (1), exhibits excellent thermal stability even though no halogen atom is contained therein. (In the formula, each of R 1 -R 4 independently represents an alkyl group having 1-4 carbon atoms or an alkoxyalkyl group that is represented by —(CH 2 ) n —OR (wherein R represents an alkyl group having 1-4 carbon atoms, and n represents an integer of 1 or 2). Incidentally, any two of the R 1 -R 4 may combine with each other to form a ring together with a nitrogen atom.
First claim
Opening claim text (preview).
The invention claimed is: 1. An ammonium salt having a saccharin anion, represented by formula (1): wherein any one of the R 1 to R 4 is an alkoxyalkyl group of —(CH 2 ) n —OR wherein R is an alkyl group having 1 to 4 carbon atoms and n is an integer of 1 or 2, remaining three of the R 1 to R 4 are each independently an alkyl group having 1 to 4 carbon atoms, provided that any two of the remaining three of the R 1 to R 4 may combine with each other to form a ring together with the nitrogen atom. 2. The ammonium salt of claim 1 , being an ionic liquid having a melting point of 25° C. or less. 3. The ammonium salt of claim 1 , having the formula (2): wherein Me is a methyl group, and Et is an ethyl group. 4. The ammonium salt of claim 1 , having the formula (3): wherein Me is a methyl group. 5. The ammonium salt of claim 1 , having the formula (4): wherein Me is a methyl group.
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Classifications
- C07D275/06Primary
with hetero atoms directly attached to the ring sulfur atom · CPC title
the oxygen atom of the etherified hydroxy group being further bound to an acyclic carbon atom · CPC title
to an acyclic saturated chain · CPC title
substituted by singly bound oxygen or sulfur atoms · CPC title
having quaternised nitrogen atoms bound to acyclic carbon atoms · CPC title
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- What does patent US11512061B2 cover?
- An ammonium salt having a saccharin anion, which is represented by formula (1), exhibits excellent thermal stability even though no halogen atom is contained therein. (In the formula, each of R 1 -R 4 independently represents an alkyl group having 1-4 carbon atoms or an alkoxyalkyl group that is represented by —(CH 2 ) n —OR (wherein R represents an alkyl group havin…
- Who is the assignee on this patent?
- Nisshinbo Holdings Inc
- What technology area does this patent fall under?
- Primary CPC classification C07D275/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 29 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).