title: Chelation assistance as a tool for the selective preparation of an imidazole-based mesoionic palladium carbene complex.
abstract: A C(4)-bound palladium-N-heterocyclic carbene (4) was selectively obtained from the C(2)-unsubstituted imidazolium salt 3. The higher stability of the C(4) versus the C(2)-bound carbene complex due to pyridine chelation assistance allowed this mesoionic compound to be obtained.
authors.affiliation: Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain. juan.tejeda@uclm.es.
authors.forename: Arturo
authors.initials: A
authors.lastname: Juzgado
authors.forename: M Mercedes
authors.initials: MM
authors.lastname: Lorenzo-García
authors.forename: Myriam
authors.initials: M
authors.lastname: Barrejón
authors.forename: Ana M
authors.initials: AM
authors.lastname: Rodríguez
authors.forename: Julián
authors.initials: J
authors.lastname: Rodríguez-López
authors.forename: Sonia
authors.initials: S
authors.lastname: Merino
authors.forename: Juan
authors.initials: J
authors.lastname: Tejeda