title: Pd-catalysed cross coupling of terminal alkynes to diynes in the absence of a stoichiometric additive.
abstract: An efficient, room temperature procedure for the cross-coupling of a range of terminal alkynes, using standard Sonogashira cross-coupling conditions (Pd/Cu) is presented. At higher reaction temperatures, head-to-tail or head-to-head dimerisation affords 1,3- and 1,4-disubstituted enynes, respectively as minor products.
authors.affiliation: Department of Chemistry, University of York, Heslington, York, UK YO10 5DD. ijsfl@york.ac.uk
authors.forename: Ian J S
authors.initials: IJ
authors.lastname: Fairlamb
authors.forename: Patrick S
authors.initials: PS
authors.lastname: Bäuerlein
authors.forename: Lester R
authors.initials: LR
authors.lastname: Marrison
authors.forename: Julia M
authors.initials: JM
authors.lastname: Dickinson