Journal
CHEMICAL COMMUNICATIONS
Volume 53, Issue 26, Pages 3689-3692Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7cc01339f
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Funding
- National Natural Science Foundation of China [21390400, 21520102003, 21272180, 21302148]
- Hubei Province Natural Science Foundation of China [2013CFA081]
- Research Fund for the Doctoral Program of Higher Education of China [20120141130002]
- Ministry of Science and Technology of China [2012YQ120060]
- Program of Introducing Talents of Discipline to Universities of China (111 Program)
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In this work, a direct C-H activation of thiophenes was presented via an oxidation pathway under visible-light irradiation, in which the thiophene radical cation serves as the key intermediate. Various thiophenes and azoles could be transformed into the corresponding amination products well, and H2O was the only byproduct which is environmentally benign. Our results showed that tert-butyl nitrite (TBN) served as the electron transfer mediator and O-2 as the terminal oxidant to regenerate the photocatalyst DDQ and revive the photocatalytic cycle.
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