triethylamine in tetrahydrofuran 1 h; Ambient temperature;

1: cesium carbonate, sodium carbonate, potassium iodide / acetone / 72 h / Heating 2: hydrazine hydrate / Pd/C (10percent) / tetrahydrofuran 3: 53 percent / triethylamine / tetrahydrofuran / 1 h / Ambient temperature View Scheme

1: cesium carbonate, sodium carbonate, potassium iodide / acetone / 72 h / Heating 2: hydrazine hydrate / Pd/C (10percent) / tetrahydrofuran 3: 53 percent / triethylamine / tetrahydrofuran / 1 h / Ambient temperature View Scheme