title: Homolytic reduction of onium salts.
abstract: 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.
authors.affiliation: Institut Parisien de Chimie Moléculaire (UMR CNRS 7201), UPMC Univ-Paris 06, Sorbonne Universités, 4 Place Jussieu, C. 229, 75005 Paris, France. louis.fensterbank@umpc.fr
authors.forename: Louis
authors.initials: L
authors.lastname: Fensterbank
authors.forename: Jean-Philippe
authors.initials: JP
authors.lastname: Goddard
authors.forename: Max
authors.initials: M
authors.lastname: Malacria
authors.forename: Cyril
authors.initials: C
authors.lastname: Ollivier
mesh_terms: D005609:Free Radicals / Q000138:chemical synthesis / Q000737:chemistry; D015394:Molecular Structure; D009861:Onium Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D010084:Oxidation-Reduction; D012492:Salts / Q000138:chemical synthesis / Q000737:chemistry
chemical_list: D005609:Free Radicals; D009861:Onium Compounds; D012492:Salts