75616 20190709135539.0 doi 10.1021/acs.organomet.7b00208 sideral 105138 ART-2017-105138 eng (orcid)0000-0003-4803-566X Bajo, S. Universidad de Zaragoza Oxidative Addition of Aryl Electrophiles to a Prototypical Nickel(0) Complex: Mechanism and Structure/Reactivity Relationships 2017 Access copy available to the general public Unrestricted Detailed kinetic studies of the reaction of a model Ni-0 complex with a range of aryl electrophiles have been conducted. The reactions proceed via a fast ligand exchange pre-equilibrium, followed by oxidative addition to produce either [(NiX)-X-I(dppf)] (and biaryl) or [Ni-II(Ar)X(dppf)]; the ortho substituent of the aryl halide determines selectivity between these possibilities. A reactivity scale is presented in which a range of substrates is quantitatively ranked in order of the rate at which they undergo oxidative addition. The rate of oxidative addition is loosely correlated to conversion in prototypical cross-coupling reactions. Substrates that lead to Ni-I products in kinetic experiments conditions. produce more homocoupling products under catalytic conditions. info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 4.051 2017 CHEMISTRY, ORGANIC 11 / 57 = 0.193 2017 Q1 T1 CHEMISTRY, INORGANIC & NUCLEAR 7 / 45 = 0.156 2017 Q1 T1 1.652 2017 Inorganic Chemistry 2017 Q1 Physical and Theoretical Chemistry 2017 Q1 Organic Chemistry 2017 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Laidlaw, G. Kennedy, A.R. Sproules, S. Nelson, D.J. 2010 760 Universidad de Zaragoza Dpto. Química Inorgánica Área Química Inorgánica 36, 8 (2017), 1662-1672 Organometallics Organometallics 0276-7333 472873 http://zaguan.unizar.es/record/75616/files/texto_completo.pdf Versión publicada 105894 http://zaguan.unizar.es/record/75616/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:75616 articulos driver 2019-07-09-12:06:48 ARTICLE