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Insights into the Mechanism of Gold(I) Oxidation with Aryldiazonium Salts
Author(s) -
MedinaMercado Ignacio,
Porcel Susana
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.202000884
Subject(s) - electrophile , nucleophile , salt (chemistry) , chemistry , photocatalysis , combinatorial chemistry , coupling (piping) , photochemistry , inorganic chemistry , catalysis , materials science , organic chemistry , metallurgy
In the last decade, aryldiazonium salts have attracted interest as coupling partners in cross‐coupling reactions mediated by gold. Initially, the presence of a photocatalyst and a light source was needed to achieve gold oxidation with these electrophiles. However, recently, it has been shown that in some instances just heating, light irradiation, or the addition of certain bases and/or nucleophiles is enough. In this review, the transformations developed so far using aryldiazonium salts as electrophiles are summarized with special emphasis on mechanistic studies. The information gained by different authors, indicates that the specific steps of gold oxidation with aryldiazonium salts depends upon the activation mode of the diazonium salt.