Silyl Phosphorus and Nitrogen Donor Chelates for Homogeneous Ortho Borylation Catalysis
作者:Behnaz Ghaffari、Sean M. Preshlock、Donald L. Plattner、Richard J. Staples、Peter E. Maligres、Shane W. Krska、Robert E. Maleczka、Milton R. Smith
DOI:10.1021/ja506229s
日期:2014.10.15
Ir catalysts supported by bidentate silyl ligands that contain P- or N-donors are shown to effect ortho borylations for a range of substituted aromatics. The substrate scope is broad, and the modular ligand synthesis allows for flexible catalyst design.
N,B-Bidentate Boryl Ligand-Supported Iridium Catalyst for Efficient Functional-Group-Directed C–H Borylation
作者:Guanghui Wang、Li Liu、Hong Wang、You-Song Ding、Jing Zhou、Shuai Mao、Pengfei Li
DOI:10.1021/jacs.6b11867
日期:2017.1.11
Convenient silylborane precursors for introducing N,B-bidentate boryl ligands onto transition metals were designed, prepared, and employed in ready formation of irdium(III) complexes via Si-B oxidative addition. A practical, efficient catalytic ortho-borylation reaction of arenes with a broad range of directing groups was developed using an in situ generated catalyst from the silylborane preligand 3c and [IrCl(COD)](2).
Palladium-catalyzed synthesis of indenoindoles via C-H activation and tandem synthesis of indenoisoquinolines via Suzuki-Miyaura coupling and annulation