Polycycloolefin monomers and catalyst activated by compound capable of generating photoacid as optical materials
US-2019232267-A1 · Aug 1, 2019 · US
Compositions and methods for visible-light-controlled ruthenium-catalyzed olefin metathesis
US12377407B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12377407-B2 |
| Application number | US-202217691257-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 10, 2022 |
| Priority date | Oct 9, 2018 |
| Publication date | Aug 5, 2025 |
| Grant date | Aug 5, 2025 |
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- Title
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Abstract
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The present disclosure provides compositions and methods for metathesizing a first alkenyl or alkynyl group with a second alkenyl or alkynyl group, the composition comprising a ruthenium metathesis catalyst and a photoredox catalyst that is activated by visible light.
First claim
Opening claim text (preview).
What is claimed is: 1. A composition for metathesizing a first alkenyl or alkynyl group with a second alkenyl or alkynyl group, comprising: (i) a ruthenium metathesis catalyst that is (SIMes) 2 RuCl 2 CHPh or (IMes) 2 RuCl 2 CHPh: and (ii) a photoredox catalyst that is: Ferrocenium hexafluorophosphate, 2. The composition of claim 1 , wherein the photoredox catalyst is activated by visible light at a wavelength of about 350 nm to about 750 nm. 3. The composition of claim 1 , wherein the ruthenium metathesis catalyst is (SIMes) 2 RuCl 2 CHPh. 4. The composition of claim 1 , wherein the ruthenium metathesis complex is (IMes) 2 RuCl 2 CHPh. 5. The composition of claim 1 , wherein the photoredox catalyst is ferrocenium hexafluorophosphate. 6. The composition of claim 1 , wherein the photoredox catalyst is 7. The composition of claim 1 , wherein the photoredox catalyst is 8. The composition of claim 1 , wherein the photoredox catalyst is 9. The composition of claim 1 , wherein the photoredox catalyst is 10. A method for chemical metathesis, comprising applying visible light to the composition of claim 1 in the presence of a ruthenium metathesis catalyst and a photoredox catalyst that is activated by visible light. 11. The method of claim 10 , wherein the visible light has a wavelength of about 350 nm to about 750 nm. 12. The method of claim 10 , that is performed at a temperature of about 20 to about 30° C. 13. The method of claim 10 , comprising about 0.01 to about 10 mol %, based on the mol % of the one compound or first and second compound, of the ruthenium metathesis catalyst. 14. The method of claim 10 , wherein the concentration of the one compound or first and second compound is about 0.01 to about 5 M.
Assignees
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Classifications
Photocatalytic properties · CPC title
Organic complexes · CPC title
at a cyclic carbon-to-carbon double bond · CPC title
at a carbon-to-carbon double bond · CPC title
Ruthenium · CPC title
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- What does patent US12377407B2 cover?
- The present disclosure provides compositions and methods for metathesizing a first alkenyl or alkynyl group with a second alkenyl or alkynyl group, the composition comprising a ruthenium metathesis catalyst and a photoredox catalyst that is activated by visible light.
- Who is the assignee on this patent?
- Univ Columbia
- What technology area does this patent fall under?
- Primary CPC classification B01J31/2273. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Aug 05 2025 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).