Electron-Transfer Photoredox Catalysis: Development of a Tin-Free Reductive Dehalogenation Reaction
作者:Jagan M. R. Narayanam、Joseph W. Tucker、Corey R. J. Stephenson
DOI:10.1021/ja9033582
日期:2009.7.1
We report an operationally simple, tin-free reductive dehalogenation system utilizing the well-known visible-light-activated photoredox catalyst Ru(bpy)(3)Cl(2) in combination with (i)Pr(2)NEt and HCO(2)H or Hantzsch ester as the hydrogen atom donor. Activated C-X bonds may be reduced in good yields with excellent functional-group tolerance and chemoselectivity over aryl and vinyl C-X bonds. The proposed