title: Phosphine-catalyzed [3+2] cycloaddition reactions of azomethine imines with electron-deficient alkenes: a facile access to dinitrogen-fused heterocycles.
abstract: An efficient method for the phosphine-catalyzed [3+2] cycloaddition reaction of azomethine imines with diphenylsulfonyl alkenes to give dinitrogen-fused bi- or tricyclic heterocyclic compounds in high yields has been described. Moreover, two phenylsulfonyl groups installed on the heterocyclic products could be conveniently removed or transformed to other functional groups, making the reaction more useful.
authors.affiliation: Department of Applied Chemistry, China Agricultural University, 2 West Yuanmingyuan Road, Beijing 100193 (P.R. China), Fax: (+86) 10-6281-5579.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Li
authors.forename: Hao
authors.initials: H
authors.lastname: Yu
authors.forename: Honglei
authors.initials: H
authors.lastname: Liu
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.forename: Hui
authors.initials: H
authors.lastname: Jiang
authors.forename: Bo
authors.initials: B
authors.lastname: Wang
authors.forename: Hongchao
authors.initials: H
authors.lastname: Guo
mesh_terms: D000475:Alkenes / Q000737:chemistry*; D001391:Azo Compounds / Q000737:chemistry*; D002384:Catalysis; D061565:Cycloaddition Reaction; D006571:Heterocyclic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D007097:Imines / Q000737:chemistry*; D010720:Phosphines / Q000737:chemistry*; D013882:Thiosemicarbazones / Q000737:chemistry*
chemical_list: D000475:Alkenes; D001391:Azo Compounds; D006571:Heterocyclic Compounds; D007097:Imines; D010720:Phosphines; D013882:Thiosemicarbazones; C512188:azomethine; C044646:phosphine
keywords: alkenes; azomethine imine; catalysis; cycloaddition reactions; phosphine