title: Investigation of sp(2)-sp coupling for electron-enriched aryl dihalides under oxygen-free Sonogashira coupling reaction conditions using a two-chamber reaction system.
abstract: Triethylamine hydroiodide crystals were formed during Sonogashira reactions; after complete reaction the solution retains a characteristic light color (see picture). Very sluggish Sonogashira reactions of electron-enriched aryl diiodides have been carried out in high yield in an oxygen-free, two-chamber reaction system. The formation of triethylamine hydroiodide crystals was monitored to determine the completion of reaction.
authors.affiliation: Department of Chemistry, University of Missouri- Kansas City, Kansas City, MO 64110, USA.
authors.forename: Xue-Yi
authors.initials: XY
authors.lastname: Chen
authors.forename: Charles
authors.initials: C
authors.lastname: Barnes
authors.forename: Jerry R
authors.initials: JR
authors.lastname: Dias
authors.forename: T C
authors.initials: TC
authors.lastname: Sandreczki