title: Pd-catalyzed decarboxylative Heck vinylation of 2-nitrobenzoates in the presence of CuF₂.
abstract: A new protocol for the decarboxylative Heck vinylation of benzoic acids is disclosed. In the presence of a catalyst system generated in situ from Pd(OAc)₂ (2 mol %), CuF₂ (2 equiv), and benzoquinone (0.5 equiv) in NMP, a wide range of olefins were coupled with various 2-nitrobenzoates at 130 ° C with the release of carbon dioxide to afford the corresponding vinyl arenes in good yields.
authors.affiliation: Department of Chemistry, Organic Chemistry, Technische Universität Kaiserslautern, Erwin-Schrödinger-Strasse, Geb. 54, D-67663 Kaiserslautern, Germany. goossen@chemie.uni-kl.de
authors.forename: Lukas J
authors.initials: LJ
authors.lastname: Gooßen
authors.forename: Bettina
authors.initials: B
authors.lastname: Zimmermann
authors.forename: Thomas
authors.initials: T
authors.lastname: Knauber