title: trans-Aminoboration across Internal Alkynes Catalyzed by B(C6F5)3for the Synthesis of Borylated Indoles.
abstract: We report here a facile B(C6F5)3catalyzed trans-aminoboration of internal alkynes, furnishing 3-position borylated indoles at ambient temperature. This reaction proceeds with the breaking of a B-N bond and the formation of N-C and B-C bonds to produce indole and derivatives in one step. It works well for various boron reagents and alkynyl-anilines. The borylated indoles can be further derivatized to give column stable organoboron compounds that can be used for future functionalization.
authors.affiliation: Department of Chemistry, Queen's University , Kingston, Ontario K7L 3N6, Canada.
authors.forename: Kang
authors.initials: K
authors.lastname: Yuan
authors.affiliation: Department of Chemistry, Queen's University , Kingston, Ontario K7L 3N6, Canada.|Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry, Beijing Institute of Technology , Beijing 100081, P. R. China.
authors.forename: Suning
authors.identifier: 0000-0003-0889-251X
authors.initials: S
authors.lastname: Wang