title: Aryne cycloaddition with 3-oxidopyridinium species.
abstract: The [3 + 2] cycloaddition of arynes with 3-oxidopyridinium species is examined using the Kobayashi benzyne precursor. The reaction affords a bicyclo[3.2.1] skeleton under mild conditions. A [7 + 2] cycloaddition mode with a subsequent pyridine ring-opening event has also been observed.
authors.affiliation: Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Henan University, Jinming Campus, Kaifeng, Henan 475004, PR China.
authors.forename: Hailong
authors.initials: H
authors.lastname: Ren
authors.forename: Chunrui
authors.initials: C
authors.lastname: Wu
authors.forename: Xiuxiu
authors.initials: X
authors.lastname: Ding
authors.forename: Xiaoge
authors.initials: X
authors.lastname: Chen
authors.forename: Feng
authors.initials: F
authors.lastname: Shi
mesh_terms: D001555:Benzene Derivatives / Q000737:chemistry*; D061565:Cycloaddition Reaction; D011726:Pyridinium Compounds / Q000138:chemical synthesis* / Q000737:chemistry*
chemical_list: D001555:Benzene Derivatives; D011726:Pyridinium Compounds; C524146:benzyne