title: Synthesis of soluble, alkyne-substituted trideca- and hexadeca-starphenes.
abstract: Two literature-known TIPS-ethynyl-dibromoacenes were prepared and employed to synthesize cyclotrimers by using Yamamoto coupling conditions. Two large, well-soluble starphenes were isolated in good yields. Crystallographic characterization verifies the triangular shape and shows significant differences in crystal packing.
authors.affiliation: Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, (Germany), Fax: (+49) 6221 548401.
authors.forename: Elias C
authors.initials: EC
authors.lastname: Rüdiger
authors.forename: Michael
authors.initials: M
authors.lastname: Porz
authors.forename: Manuel
authors.initials: M
authors.lastname: Schaffroth
authors.forename: Frank
authors.initials: F
authors.lastname: Rominger
authors.forename: Uwe H F
authors.initials: UH
authors.lastname: Bunz
keywords: Yamamoto coupling; density functional calculations; pi interactions; starphenes; synthetic methods