Novel Electrodeposition System
US-2017335120-A1 · Nov 23, 2017 · US
Bismuthene as versatile photocatalyst operating under variable conditions for photoredox c-h bond functionalization
US2025345777A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025345777-A1 |
| Application number | US-202218862567-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 20, 2022 |
| Priority date | May 20, 2022 |
| Publication date | Nov 13, 2025 |
| Grant date | — |
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Abstract
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A method for the synthesis of two-dimensional (2D) bismuth (bismuthene) and a use of this material as a photoredox catalyst are provided. The 2D bismuthene is prepared by a liquid-phase exfoliation of the 3D-layered bismuth. The photoredox catalyst is used for the C-H functionalization reactions for the synthesis of complex molecules under versatile conditions.
First claim
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What is claimed is: 1 . A method for synthesizing bismuthene, comprising steps of: applying a surfactant-assisted chemical reduction method comprising oleylamine as a surfactant and a solvent, borane tert-butylamine as a reducing agent to obtain 3D-layered bismuth from bismuth (III) chloride (BiCl 3 ), preparing 2D bismuthene from the 3D-layered bismuth by using a liquid-phase exfoliation method. 2 . The method for synthesizing the bismuthene according to claim 1 , -wherein the step of preparing the 2D bismuthene is conducted by a liquid-phase exfoliation of the 3D-layered bismuth in dimethyl sulfoxide (DMSO), dimethyl formamide (DMF), ethyl acetate (EtOAc), N-methyl-2-pyrrolidone (NMP), H 2 O, acetone, 2-propanol (i-PrOH), and acetonitrile (MeCN) under ambient conditions using a Bandelin Sonoplus 2200.2 ultrasonic homogenizer at 200 W, 25% amplitude for 1 h. 3 . A method of using the bismuthene synthesized by the method for synthesizing the bismuthene according to claim 1 as a photoredox catalyst. 4 . The method of using the bismuthene according to claim 3 , wherein the photoredox catalyst is used in a C-H functionalization of heteroarenes comprising furan, thiophene, and pyrrole in a presence of diazonium salts under dark, outdoor, and indoor lighting at room temperature. 5 . The method of using the bismuthene according to claim 3 , wherein the photoredox catalyst is used in a C-H functionalization of challenging arenes comprising benzene and nitrobenzene in a presence of diazonium salts under dark, outdoor, and indoor lighting at room temperature. 6 . The method of using the bismuthene according to claim 3 , wherein in the method for synthesizing the bismuthene, the step of preparing the 2D bismuthene is conducted by a liquid-phase exfoliation of the 3D-layered bismuth in dimethyl sulfoxide (DMSO), dimethyl formamide (DMF), ethyl acetate (EtOAc), N-methyl-2-pyrrolidone (NMP), H2O, acetone, 2-propanol (i-PrOH), and acetonitrile (MeCN) under ambient conditions using a Bandelin Sonoplus 2200.2 ultrasonic homogenizer at 200 W, 25% amplitude for 1 h.
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Classifications
Obtaining bismuth · CPC title
Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals · CPC title
by sulfur atoms · CPC title
by oxygen atoms · CPC title
Radicals substituted by halogen atoms or nitro or nitroso radicals · CPC title
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- What does patent US2025345777A1 cover?
- A method for the synthesis of two-dimensional (2D) bismuth (bismuthene) and a use of this material as a photoredox catalyst are provided. The 2D bismuthene is prepared by a liquid-phase exfoliation of the 3D-layered bismuth. The photoredox catalyst is used for the C-H functionalization reactions for the synthesis of complex molecules under versatile conditions.
- Who is the assignee on this patent?
- Univ Koc
- What technology area does this patent fall under?
- Primary CPC classification B01J23/18. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Nov 13 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).