Single-Electron Transmetalation: Photoredox/Nickel Dual Catalytic Cross-Coupling of Secondary Alkyl β-Trifluoroboratoketones and -esters with Aryl Bromides

Org Lett. 2016 Jun 17;18(12):2994-7. doi: 10.1021/acs.orglett.6b01357. Epub 2016 Jun 6.

Abstract

The first cross-coupling of secondary alkyl β-trifluoroboratoketones and -esters has been achieved through application of photoredox/nickel dual catalysis. Although the related β-trifluoroboratoamides have been effectively cross-coupled via Pd-catalysis, the corresponding ketones and esters had proven recalcitrant prior to this report. Reactions occur under mild conditions, and a variety of functional groups and sterically and electronically diverse reaction partners are tolerated.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Borates / chemical synthesis*
  • Catalysis
  • Electrons
  • Esters / chemical synthesis
  • Hydrocarbons, Fluorinated / chemistry*
  • Ketones / chemical synthesis
  • Molecular Structure
  • Nickel / chemistry*
  • Oxidation-Reduction
  • Palladium / chemistry
  • Photochemical Processes

Substances

  • Borates
  • Esters
  • Hydrocarbons, Fluorinated
  • Ketones
  • Palladium
  • Nickel