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Cover Feature: Gold Redox Catalysis with a Selenium Cation as a Mild Oxidant (Chem. Eur. J. 27/2020)
Author(s) -
Wang Jin,
Wei Chiyu,
Li Xuming,
Zhao Pengyi,
Shan Chuan,
Wojtas Lukasz,
Chen Hao,
Shi Xiaodong
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202001529
Subject(s) - diselenide , redox , chemistry , catalysis , selenium , regioselectivity , alkyne , selenide , intermolecular force , photochemistry , polymer chemistry , inorganic chemistry , organic chemistry , molecule
Diselenide is demonstrated to function as a mild oxidant in gold‐catalyzed alkyne diselenation reactions, which overcome the daunting high Au I/III redox potential (1.4 eV) depicted in the cover image as a ‘golden roller coaster’. Excellent trans‐ regioselectivity and good to excellent yields were achieved with a wide range of alkynes and allenes. Mechanistic investigation revealed the formation of a vinyl gold(I) intermediate followed by an intermolecular selenium cation migration, confirming a gold (I/III) redox process. More information can be found in the Communication by X. Shi et al. on page 5946.