1: With tri-isopropoxy-borane; lithium diisopropyl amide in tetrahydrofuran T=0°C; 1.5 h; 2: With hydrogenchloride in tetrahydrofuran; water

1.1: dicyclohexyl(2′,6′-dimethoxybiphenyl-2-yl)phosphine; potassium phosphate / tris-(dibenzylideneacetone)dipalladium(0) / toluene / 1.5 h / 85 °C / Inert atmosphere 1.2: 63 °C 2.1: sodium hydride / N,N-dimethyl-formamide / 2 h / 0 °C View Scheme