title: Heteroacene Synthesis through C-S Cross-Coupling/5-endo-dig Cyclization.
abstract: Highly efficient, one-step synthesis of sulfur-containing heteroacenes was achieved through palladium-catalyzed C-S cross-coupling of bis-alkynes with thioacetate as hydrogen sulfide surrogate. Heteroacenes consisting of three, five, and seven fused aromatic rings were obtained in a single catalytic step by four-, six-, and eightfold C-S bond formation.
authors.affiliation: Department of Chemistry, Institute of Organic Chemistry, University of Paderborn, Warburger Strasse 100, 33098, Paderborn, Germany.
authors.forename: Peter
authors.initials: P
authors.lastname: Oechsle
authors.affiliation: Department of Chemistry, Institute of Inorganic Chemistry, University of Paderborn, Warburger Strasse 100, 33098, Paderborn, Germany.
authors.forename: Ulrich
authors.initials: U
authors.lastname: Flörke
authors.affiliation: Department of Chemistry, Institute of Inorganic Chemistry, University of Paderborn, Warburger Strasse 100, 33098, Paderborn, Germany.
authors.forename: Hans
authors.initials: H
authors.lastname: Egold
authors.affiliation: Department of Chemistry, Institute of Organic Chemistry, University of Paderborn, Warburger Strasse 100, 33098, Paderborn, Germany.
authors.forename: Jan
authors.identifier: http://orcid.org/0000-0002-3698-668X
authors.initials: J
authors.lastname: Paradies
keywords: cross coupling; cyclization; domino reactions; homogeneous catalysis; sulfur heterocycles