1.1: dimethylsulfoxide / 20 °C 2.1: 2.54 g / NaOH / H2O / 8 h / Heating 3.1: diethyl cyanophosphonate / dimethylformamide / 0.5 h / 0 °C 3.2: 39 percent / Et3N / dimethylformamide / 2 h / 0 °C 4.1: 4 percent / tetraethylammonium tosylate / dimethylformamide / 60 °C / Electrolysis View Scheme

1: dimethylsulfoxide / 20 °C 2: 2.54 g / NaOH / H2O / 8 h / Heating View Scheme

1.1: 9-bora-bicyclo[3.3.1]nonane / tetrahydrofuran / 4 h / 0 - 20 °C 1.2: 2.5 h / 60 °C 2.1: hydrogenchloride / 30 h / Reflux View Scheme

1.1: dimethylsulfoxide / 20 °C 2.1: 2.54 g / NaOH / H2O / 8 h / Heating 3.1: diethyl cyanophosphonate / dimethylformamide / 0.5 h / 0 °C 3.2: 39 percent / Et3N / dimethylformamide / 2 h / 0 °C 4.1: 80 percent / tetraethylammonium tosylate / dimethylformamide / 60 °C / Electrolysis View Scheme