title: Transition-Metal Free Mechanochemical Approach to Polyyne Substituted Pyrroles.
abstract: In this contribution, the synthesis of long chain hexatriynyl- and octatetraynyl-substituted pyrroles in one step from 1-halopolyyne precursors is reported. The products were obtained via a mechanochemical approach by simple grinding of 1-haloalkynes with N-substituted pyrroles and potassium carbonate which played a role of heterogeneous catalyst and this solvent- and transition metal-free approach is unprecedent in the synthesis of new, organic, long chain polyynes. Additionally, an extensive X-ray single crystal study of pyrrole end-capped polyynes is presented. Such compounds are possible substrates for different oligoheterocycles and have a significant application potential such as for instance molecular wires.
authors: Department of Chemistry, University of Wrocław , 14 F. Joliot-Curie, 50-383 Wrocław, Poland.
authors: Bartłomiej
authors: B
authors: Pigulski
authors: Department of Chemistry, University of Wrocław , 14 F. Joliot-Curie, 50-383 Wrocław, Poland.
authors: Agata
authors: A
authors: Arendt
authors: A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences , 1 Favorsky, 664033 Irkutsk, Russian Federation.
authors: Denis N
authors: DN
authors: Tomilin
authors: A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences , 1 Favorsky, 664033 Irkutsk, Russian Federation.
authors: Lyubov N
authors: LN
authors: Sobenina
authors: A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences , 1 Favorsky, 664033 Irkutsk, Russian Federation.
authors: Boris A
authors: BA
authors: Trofimov
authors: Department of Chemistry, University of Wrocław , 14 F. Joliot-Curie, 50-383 Wrocław, Poland.
authors: Sławomir
authors: S
authors: Szafert