Gold Redox Catalysis with a Selenium Cation as a Mild Oxidant
作者:Jin Wang、Chiyu Wei、Xuming Li、Pengyi Zhao、Chuan Shan、Lukasz Wojtas、Hao Chen、Xiaodong Shi
DOI:10.1002/chem.202000166
日期:2020.5.12
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.
Free-radical addition of diphenyldiselenide 2 to allenes 1 took place under irradiation through Pyrex with tungusten lamp to provide 1-(phenylselenomethyl)vinyl selenides 3 in excellent yields.