10270-28-7Relevant articles and documents
A Ball-Milling-Enabled Cross-Electrophile Coupling
Jones, Andrew C.,Nicholson, William I.,Leitch, Jamie A.,Browne, Duncan L.
, p. 6337 - 6341 (2021)
The nickel-catalyzed cross-electrophile coupling of aryl halides and alkyl halides enabled by ball-milling is herein described. Under a mechanochemical manifold, the reductive C-C bond formation was achieved in the absence of bulk solvent and air/moisture sensitive setups, in reaction times of 2 h. The mechanical action provided by ball milling permits the use of a range of zinc sources to turnover the nickel catalytic cycle, enabling the synthesis of 28 cross-electrophile coupled products.
Aryl Radicals from Electrochemical Reduction of Aryl Halides. Addition on Olefins
Chami, Zoubida,Gareil, Monique,Pinson, Jean,Saveant, Jean-Michel,Thiebault, Andre
, p. 586 - 595 (2007/10/02)
Aryl radicals generated by direct and indirect (by means of an aromatic anion radical mediator) electrochemistry are reacted with olefins in liquid ammonia and in organic solvents (Me2SO, MeCN, DMF).The arylated product is obtained in good yield in the latter case.In pure liquid NH3, the yields are extremely poor.They are improved upon addition of a proton donor such as urea or water; further increase of yields is obtained upon addition of 2-propanol.A reaction mechanism is proposed based on these observations and on the results of deuterium incorporation experiments.Cyclic voltammetry is used to determine the rate constant of the key step in the mechanism, viz, the addition of the aryl radical to the olefin, through its competition with its reaction with nucleophiles in the framework of an SRN1 substitution process.