title: 2-Bromotetraazapentacene and Its Functionalization by Pd(0)-Chemistry.
abstract: We have synthesized a brominated N,N'-dihydrotetraazapentacene using a condensation route. Sonogashira reactions replace the Br-substituent by an alkynyl group, placed on the azaacene core. Sonogashira coupling of brominated dihydro tetraazapentacene 1H2 with alkynes and subsequent oxidation afford several functionalized TIPS-tetraazapentacene derivatives with energetically stabilized FMOs. These TIPS-TAPs are either crystalline or amorphous, depending upon their substitution pattern.
authors.affiliation: Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg , Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.
authors.forename: Florian L
authors.initials: FL
authors.lastname: Geyer
authors.affiliation: Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg , Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.
authors.forename: Victor
authors.initials: V
authors.lastname: Brosius
authors.affiliation: Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg , Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.
authors.forename: Uwe H F
authors.initials: UH
authors.lastname: Bunz