Sustainable Synthesis, NMR and Computational Study of Isobutylmesitylphosphine

Abstract

The alkyl-aryl-substituted secondary phosphines i-Bu(Mes)PH and Cy(Mes)PH are obtained from the reaction of the electrochemically generated organonickel sigma-complex [NiBr(Mes)(bpy)] (Mes=2,4,6-trimethylphenyl; bpy=2,2′-bipyridine) with primary phosphines i-BuPH2 and CyPH2, respectively. Detailed multinuclear NMR spectroscopy and quantum-chemical calculations were used to assign the diastereotopic protons of i-Bu(Mes)PH.