title: Efficient route to 1,3-Di-N-imidazolylbenzene. A comparison of monodentate vs bidentate carbenes in Pd-catalyzed cross coupling.
abstract: A new bis(carbene) ligand architecture has been developed and was evaluated in the Suzuki-Miyaura cross-coupling reaction of various aryl halides with phenylboronic acid. Several new bis(carbene) ligands were tested in different carbene:Pd ratios. Pd(OAc)(2) and Pd(2)(dba)(3) were compared for efficiency as a Pd source. It was found that the Pd(OAc)(2)/bis(carbene) system formed a catalyst for the activation of chlorobenzene. [reaction: see text]
authors.affiliation: Department of Chemistry, University of California-Riverside, Riverside, CA 92521-0403, USA.
authors.forename: Victor C
authors.initials: VC
authors.lastname: Vargas
authors.forename: Ramel J
authors.initials: RJ
authors.lastname: Rubio
authors.forename: T Keith
authors.initials: TK
authors.lastname: Hollis
authors.forename: Martha E
authors.initials: ME
authors.lastname: Salcido