title: Cu-catalyzed synthesis of symmetric group 6 (Fischer) bis-carbene complexes.
abstract: The efficient copper oxidative homocoupling (CuCl/TMEDA/O2) of alkynyl Fischer carbene complexes yields bis-carbene complexes having pi-tethers. The bimetallic complexes are exceptional templates to prepare diverse organic symmetric structures connected by pi-extended fragments.
authors.affiliation: Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain.
authors.forename: María P
authors.initials: MP
authors.lastname: López-Alberca
authors.forename: María J
authors.initials: MJ
authors.lastname: Mancheño
authors.forename: Israel
authors.initials: I
authors.lastname: Fernández
authors.forename: Mar
authors.initials: M
authors.lastname: Gómez-Gallego
authors.forename: Miguel A
authors.initials: MA
authors.lastname: Sierra