ortho-Selective C–H borylation of aryl ketones with bis(pinacolato)diboron proceeded at 120 °C in octane in the presence of a catalytic amount of iridium(I) complexes comprising 1/2[Ir(OMe)(cod)]2 and AsPh3.
Air‐Stable Bis‐Cyclometallated Iridium Catalysts for Ortho‐Directed C(<i>sp</i><sup>2</sup>)−H Borylation
作者:Janis M. Zakis、Antonis M. Messinis、Lutz Ackermann、Tomas Smejkal、Joanna Wencel‐Delord
DOI:10.1002/adsc.202301411
日期:——
designed. However, iridium-catalyzed C−Hborylation remains the most effective and frequently used.6 The initial reports spearheaded by Hartwig, Miyaura, Ishiyama (Figure 1a), as well as Smith focused on undirected C−Hborylations allowing functionalization of the most sterically accessible and/or electronically favored C−H bond.6b, 7 More recently, directed C−Hborylations have emerged, in which a coordinating