Gold Redox Catalysis with a Selenium Cation as a Mild Oxidant
Jin Wang, Chiyu Wei, Xuming Li, Pengyi Zhao, Chuan Shan, Lukasz Wojtas, Hao Chen, Xiaodong Shi
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Source: Crossref
Published: Apr 14, 2020
DOI: 10.1002/chem.202000166
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Abstract Gold‐catalyzed alkyne and allene diselenations were developed. Excellent regioselectivity ( trans ) and good to excellent yields were achieved (up to 98 % with 2 % catalyst loading) with a wide range of substrates. Mechanistic investigation revealed the formation of a vinyl gold(I) intermediate followed by an intermolecular selenium cation migration, suggesting that a gold(I/III) redox process was successfully implemented under mild conditions.
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