title: Synthesis of pyrido[1,2-b]indazoles via aryne [3 + 2] cycloaddition with N-tosylpyridinium imides.
abstract: The [3 + 2] cycloaddition of arynes with N-tosylpyridinium imides, followed by an elimination of Ts(-), affords pyrido[1,2-b]indazoles under mild reaction conditions in good yields.
authors.affiliation: Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Henan University, Jinming Campus, Kaifeng, Henan 475004, P. R. China.
authors.forename: Jingjing
authors.initials: J
authors.lastname: Zhao
authors.forename: Chunrui
authors.initials: C
authors.lastname: Wu
authors.forename: Pan
authors.initials: P
authors.lastname: Li
authors.forename: Wenying
authors.initials: W
authors.lastname: Ai
authors.forename: Hongli
authors.initials: H
authors.lastname: Chen
authors.forename: Chaojie
authors.initials: C
authors.lastname: Wang
authors.forename: Richard C
authors.initials: RC
authors.lastname: Larock
authors.forename: Feng
authors.initials: F
authors.lastname: Shi
mesh_terms: D002384:Catalysis; D003500:Cyclization; D007094:Imides / Q000737:chemistry*; D007191:Indazoles / Q000138:chemical synthesis*; D015394:Molecular Structure; D011726:Pyridinium Compounds / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: D007094:Imides; D007191:Indazoles; D011726:Pyridinium Compounds