期刊
CHEMICAL SCIENCE
卷 6, 期 8, 页码 4851-4854出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5sc00807g
关键词
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资金
- 973 Program [2012CB725302]
- National Natural Science Foundation of China [21390400, 21025206, 21272180, 21302148]
- Research Fund for the Doctoral Program of Higher Education of China [20120141130002]
- Ministry of Science and Technology of China [2012YQ120060]
- U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
- Department of Energy
- MRCAT member institutions
An unprecedented single electron redox process in copper catalysis is confirmed using operando X-ray absorption and EPR spectroscopies. The oxidation state of the copper species in the interaction between Cu(II) and a sulfinic acid at room temperature, and the accurate characterization of the formed Cu(I) are clearly shown using operando X-ray absorption and EPR evidence. Further investigation of anion effects on Cu(II) discloses that bromine ions can dramatically increase the rate of the redox process. Moreover, it is proven that the sulfinic acids are converted into sulfonyl radicals, which can be trapped by 2-arylacrylic acids and various valuable beta-keto sulfones are synthesized with good to excellent yields under mild conditions.
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