567-15-7Relevant articles and documents
Palladium-catalyzed reaction of boronic acids with chiral and racemic α-bromo sulfoxides
Rodriguez, Nuria,Cuenca, Ana,Ramirez De Arellano, Carmen,Medio-Simon, Mercedes,Peine, Denissa,Asensio, Gregorio
, p. 8070 - 8076 (2007/10/03)
Palladium-catalyzed cross-coupling reactions of racemic α-bromo sulfoxides with boronic acids are carried out in either aqueous or nonaqueous medium with formation of a new C sp3-C sp2 bond. The arylation of chiral α-bromo sulfoxides occurs without racemization. The cross-coupling reaction is general and gives high yields with arylboronic acids substituted with either donor or acceptor groups but gives poor results with heteroarylboronic acids. The best yields are obtained using degassed solvents and CsF instead of aqueous base. The use of aqueous base and the presence of oxygen favor the homocoupling side reaction.
Homocoupling of aryl iodides and bromides promoted by sulfur-containing palladacycles
Silveira, Priscila B.,Lando, Vanusa R.,Dupont, Jairton,Monteiro, Adriano L.
, p. 2327 - 2329 (2007/10/03)
Sulfur-containing palladacycles, in particular those derived from the orthometalation of benzylthioethers, effectively promote the homocoupling of aryl iodides and bromides, under relatively mild reaction conditions to furnish symmetrical biphenyls in good yields.
Activation of Reducing Agents. Sodium Hydride Containing Complex Reducing Agents. 32. NiCRAL's as Very Efficient Agents in Promoting Cross-Coupling of Aryl Halides
Lourak, Mouhsine,Vanderesse, Regis,Fort, Yves,Caubere, Paul
, p. 4844 - 4848 (2007/10/02)
Nickel-containing complex reducing agents NiCRA-bpy are shown to be the first nickel reagents able to efficiently perform cross-coupling of aryl halides.The presence of KI in the reaction medium generally improves the procedure.The mechanism and influence of the structures of the substrates are discused.