title: "Dba-free" palladium intermediates of the Heck-Matsuda reaction.
abstract: The "dba-free" Heck-Matsuda reaction was investigated via direct ESI-MS(/MS) monitoring. Palladium species involved in the reduction of Pd(II) during a Wacker type reaction and several "dba-free" arylpalladium transient complexes were detected and characterized. Based on these findings, a more comprehensible catalytic cycle for this pivotal reaction is suggested.
authors.affiliation: Chemistry Institute, University of Campinas-UNICAMP, Campinas, Brazil.
authors.forename: Angelo H L
authors.initials: AH
authors.lastname: Machado
authors.forename: Humberto M S
authors.initials: HM
authors.lastname: Milagre
authors.forename: Livia S
authors.initials: LS
authors.lastname: Eberlin
authors.forename: Adão A
authors.initials: AA
authors.lastname: Sabino
authors.forename: Carlos Roque D
authors.initials: CR
authors.lastname: Correia
authors.forename: Marcos N
authors.initials: MN
authors.lastname: Eberlin
mesh_terms: D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D010165:Palladium / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization; D053719:Tandem Mass Spectrometry
chemical_list: D009942:Organometallic Compounds; D010165:Palladium