Journal
CHIMIA
Volume 66, Issue 6, Pages 425-432Publisher
SWISS CHEMICAL SOC
DOI: 10.2533/chimia.2012.425
Keywords
Diazoniums; Iodoniums; Phosphoniums; Radicals; Reduction; Sulfoniums; Selenoniums; Telluroniums
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Onium salts have proved to be efficient sources of carbon-centered radicals. They can undergo homolytic reduction by single electron transfer (SET) and participate in subsequent synthetic transformations. This review aims to provide an overview on the behavior of onium salts including diazonium, sulfonium, selenonium, telluronium, phosphonium and iodonium cations toward various reductive methods such as radiolysis, electrolysis, photolysis or the use of SET reagents. Mechanistic and synthetic aspects are presented. Applications in polymers and materials science are not covered.
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