Pal, Anuushka and Ghosh, Indrajit and Sapra, Sameer and Koenig, Burkhard (2017) Quantum Dots in Visible-Light Photoredox Catalysis: Reductive Dehalogenations and C-H Arylation Reactions Using Aryl Bromides. CHEMISTRY OF MATERIALS, 29 (12). pp. 5225-5231. ISSN 0897-4756, 1520-5002
Full text not available from this repository. (Request a copy)Abstract
In the recent past, visible-light-mediated photoredox catalysis has made a huge impact on the development of new synthetic methods under very mild and ecologically benign conditions. Although semiconductor nanocrystals or quantum dots (QDs) possess suitable optoelectronic and redox properties for photoredox catalytic applications, surprisingly, their use for the activation of challenging chemical bonds in the synthesis of organic molecules is little explored. We report here the application of ZnSe/CdS core/shell QDs for the synthetically important photoredox catalytic activation of carbon halogen bonds in dehalogenation and C-H arylation reactions using (hetero)aryl halides as bench-stable inexpensive bulk starting materials, under very mild reaction conditions. The outstanding catalytic activity of ZnSe/CdS core/shell QDs is a direct consequence of the high specific surface area and homogeneity of QDs in solution and their high photostability toward oxidation.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ELECTRON-TRANSFER PROCESSES; CDSE NANOPARTICLES; PHOTOCATALYTIC DEGRADATION; CORE/SHELL NANOCRYSTALS; PHOTOVOLTAIC DEVICES; CADMIUM-SULFIDE; RECENT PROGRESS; WATER; CARBON; BOND; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Organische Chemie Chemistry and Pharmacy > Institut für Organische Chemie > Lehrstuhl Prof. Dr. Burkhard König |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Dec 2018 13:16 |
| Last Modified: | 20 Feb 2019 07:57 |
| URI: | https://pred.uni-regensburg.de/id/eprint/1665 |
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