title: Cobalt-catalyzed addition of arylzinc reagents to norbornene derivatives through 1,4-cobalt migration.
abstract: A cobalt-diphosphine catalyst promotes the addition of an arylzinc reagent to a norbornene derivative to afford o-(2-exo-norbornyl)arylzinc species. This "migratory arylzincation" reaction is considered to involve insertion of norbornene into an arylcobalt species, alkyl-to-aryl 1,4-cobalt migration, and transmetalation between the resulting o-(2-exo-norbornyl)arylcobalt species and the arylzinc reagent. The o-(2-exo-norbornyl)arylzinc species can be intercepted by common organic electrophiles under copper or palladium catalysis.
authors.affiliation: Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University , Singapore 637371, Singapore.
authors.forename: Boon-Hong
authors.initials: BH
authors.lastname: Tan
authors.forename: Naohiko
authors.initials: N
authors.lastname: Yoshikai