1: With diisobutylaluminium hydride in tetrahydrofuran; hexane 0.583333 h; 2: With sodium potassium tartrate in tetrahydrofuran; hexane; water T=20°C; 0.25 h;

1.1: diisobutylaluminium hydride / tetrahydrofuran; hexane / 0.58 h 1.2: 0.25 h / 20 °C 2.1: pyridine; hydroxylamine hydrochloride / ethanol / 23 h / 20 °C 3.1: triethylamine / dichloromethane / 2 h / 0 - 20 °C 4.1: tris-(dibenzylideneacetone)dipalladium(0); triethylamine; P(3,5-2F3C-C6H3)3 / N,N-dimethyl-formamide / 1 h / 120 °C / Inert atmosphere View Scheme