title: A new mechanistic pathway under Sonogashira reaction protocol involving multiple acetylene insertions.
abstract: An unreported product outcome from an intended Sonogashira coupling is presented. The generality of this finding has been demonstrated by screening of a range of pre-catalysts. Mechanistic studies are consistent with the tetra-aryl benzene product forming by interception of the aryl halide oxidative addition intermediate by repeated acetylene insertion.
authors.affiliation: School of Chemistry, University of Tasmania, Hobart, Tasmania, Australia. Allan.Canty@utas.edu.au
authors.forename: Roderick C
authors.initials: RC
authors.lastname: Jones
authors.forename: Allan J
authors.initials: AJ
authors.lastname: Canty
authors.forename: Tom
authors.initials: T
authors.lastname: Caradoc-Davies
authors.forename: Noel W
authors.initials: NW
authors.lastname: Davies
authors.forename: Michael G
authors.initials: MG
authors.lastname: Gardiner
authors.forename: Philip J
authors.initials: PJ
authors.lastname: Marriott
authors.forename: Christian P G
authors.initials: CP
authors.lastname: Rühle
authors.forename: Vicki-Anne
authors.initials: VA
authors.lastname: Tolhurst