RT info:eu-repo/semantics/article T1 Cross Alkyl-Aryl Versus Homo Aryl-Aryl Coupling in Pdcatalyzed Coupling of Alkyl-Gold(I) and Aryl-X (X = Halide) A1 Carrasco Fernández, Desiré A1 Pérez Temprano, Mónica H. A1 Casares González, Juan Ángel A1 Espinet Rubio, Pablo K1 Catalyst AB Experiments on palladium catalyzed cross-coupling of [AuMe(PPh3)] with aryl iodides show that Ar–Ar homocoupling products are the main product or an abundant byproduct of the reaction. The percentage of cross-coupling product is higher for aryls with larger p Hammet parameter. The scrambling of organic groups via bimetallic intermediates explains the formation of these products. This scrambling can be observed and the activation energies partially quantified in some cases using as aryl C6Cl2F3, which is relatively reluctant to coupling. PB American Chemical Society SN 0276-7333 YR 2014 FD 2014 LK http://uvadoc.uva.es/handle/10324/21728 UL http://uvadoc.uva.es/handle/10324/21728 LA eng NO Organometallics, 2014, 33 (13), p. 3540–3545 NO Producción Científica DS UVaDOC RD 24-nov-2024