title: Iron(II)-Catalyzed Intermolecular Aminofluorination of Unfunctionalized Olefins Using Fluoride Ion.
abstract: We herein report a new catalytic method for intermolecular olefin aminofluorination using earth-abundant iron catalysts and nucleophilic fluoride ion. This method tolerates a broad range of unfunctionalized olefins, especially nonstyrenyl olefins that are incompatible with existing olefin aminofluorination methods. This new iron-catalyzed process directly converts readily available olefins to internal vicinal fluoro carbamates with high regioselectivity (N vs F), many of which are difficult to prepare using known methods. Preliminary mechanistic studies demonstrate that it is possible to exert asymmetric induction using chiral iron catalysts and that both an iron-nitrenoid and carbocation species may be reactive intermediates.
authors.affiliation: Department of Chemistry, Georgia State University , 100 Piedmont Avenue SE, Atlanta, Georgia 30303, United States.
authors.forename: Deng-Fu
authors.initials: DF
authors.lastname: Lu
authors.affiliation: Department of Chemistry, Georgia State University , 100 Piedmont Avenue SE, Atlanta, Georgia 30303, United States.
authors.forename: Cheng-Liang
authors.initials: CL
authors.lastname: Zhu
authors.affiliation: Department of Chemistry, Georgia State University , 100 Piedmont Avenue SE, Atlanta, Georgia 30303, United States.
authors.forename: Jeffrey D
authors.initials: JD
authors.lastname: Sears
authors.affiliation: Department of Chemistry, Georgia State University , 100 Piedmont Avenue SE, Atlanta, Georgia 30303, United States.
authors.forename: Hao
authors.initials: H
authors.lastname: Xu
mesh_terms: D000475:Alkenes / Q000737:chemistry*; D002384:Catalysis; D005459:Fluorides / Q000737:chemistry*; D054879:Halogenation; D007501:Iron / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: D000475:Alkenes; D007501:Iron; D005459:Fluorides