title: Cu-catalyzed transannulation reaction of pyridotriazoles: general access to fused polycyclic indolizines.
abstract: An efficient intramolecular transannulation reaction of pyridotriazoles using internal alkynes en route to various fused polycyclic indolizines has been developed. For the first time it is shown that in addition to the well-established Rh- or Cu-catalyzed carbene mechanism, the transannulation reaction could also follow a Lewis acid-mediated electrophilic pathway.
authors.affiliation: Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St., Room 4500, Chicago, Illinois 60607, USA. vlad@uic.edu.
authors.forename: Yi
authors.initials: Y
authors.lastname: Shi
authors.affiliation: Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St., Room 4500, Chicago, Illinois 60607, USA. vlad@uic.edu.
authors.forename: Vladimir
authors.initials: V
authors.lastname: Gevorgyan