title: New Pd-catalyzed tandem cyclization processes on group 6 bis-carbene complexes.
abstract: The reaction of bis-carbene complexes 1a,b derived from catechol and Pd-catalysts gave product 3 derived from an intramolecular coupling-electrocyclization process, while nucleophilic attack-NH-carbene insertion product 6 was obtained from complexes 1c,d derived from 1,2-diaminobenzene.
authors.affiliation: Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, 28040-Madrid, Spain. sierraor@quim.ucm.es
authors.forename: Miguel A
authors.initials: MA
authors.lastname: Sierra
authors.forename: Juan C
authors.initials: JC
authors.lastname: del Amo
authors.forename: María J
authors.initials: MJ
authors.lastname: Mancheño
authors.forename: Mar
authors.initials: M
authors.lastname: Gómez-Gallego
authors.forename: M
authors.initials: M
authors.lastname: Rosario Torres