title: Nickel-catalyzed tetramerization of alkynes: synthesis and structure of octatetraenes.
abstract: In the presence of a catalytic system comprised of NiBr(2)(dppe) and Zn, arylacetylenes undergo tetramerization to form linear octatetraenes, generally in good to excellent yields. The structure of the coupling products was verified by X-ray crystallography.
authors.affiliation: Department of Chemistry, National Cheng Kung University, No. 1 Ta-Hsueh Road, 70101 Tainan, Taiwan.
authors.forename: Tsun-Cheng
authors.initials: TC
authors.lastname: Wu
authors.forename: Jheng-Jhih
authors.initials: JJ
authors.lastname: Chen
authors.forename: Yao-Ting
authors.initials: YT
authors.lastname: Wu
mesh_terms: D000480:Alkynes / Q000737:chemistry*; D002384:Catalysis; D018360:Crystallography, X-Ray; D034242:Cyclooctanes / Q000138:chemical synthesis* / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D009532:Nickel / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D013237:Stereoisomerism; D015032:Zinc / Q000737:chemistry
chemical_list: D000480:Alkynes; D034242:Cyclooctanes; D009942:Organometallic Compounds; D009532:Nickel; D015032:Zinc