title: Cu(OTf)2-mediated fluorination of aryltrifluoroborates with potassium fluoride.
abstract: This Communication describes the Cu(OTf)2-mediated fluorination of aryltrifluoroborates with KF. The reaction proceeds under mild conditions (at 60 °C over 20 h) and shows a broad substrate scope and functional group tolerance. The Cu is proposed to play two separate roles in this transformation: (1) as a mediator for the aryl–F coupling and (2) as an oxidant for accessing a proposed Cu(III)(aryl)(F) intermediate.
authors.forename: Yingda
authors.initials: Y
authors.lastname: Ye
authors.forename: Sydonie D
authors.initials: SD
authors.lastname: Schimler
authors.forename: Patrick S
authors.initials: PS
authors.lastname: Hanley
authors.forename: Melanie S
authors.initials: MS
authors.lastname: Sanford
mesh_terms: D001880:Boranes / Q000737:chemistry*; D005459:Fluorides / Q000737:chemistry*; D006845:Hydrocarbons, Fluorinated / Q000138:chemical synthesis* / Q000737:chemistry; D008698:Mesylates / Q000737:chemistry*; D015394:Molecular Structure; D017680:Potassium Compounds / Q000737:chemistry*
chemical_list: D001880:Boranes; D006845:Hydrocarbons, Fluorinated; D008698:Mesylates; D017680:Potassium Compounds; C021274:boron trifluoride; C033320:potassium fluoride; C012077:trifluoromethanesulfonic acid; D005459:Fluorides