sodium hydroxide; hydrazine hydrate; palladium on activated charcoal in water Hydrogenolysis; 10 h; Heating;

Multi-step reaction with 2 steps 1: 50 percent / K2CO3, benzyltriethylammonium bromide / acetonitrile / 16 h / Heating2: 83 percent / 20percent aq. KOH / methanol / 1.) RT, 1.5 h, 2.) reflux, 30 min  

Multi-step reaction with 2 steps 1: 91 percent / aq. H2O2; K2CO3 / dimethylsulfoxide / 16.5 h / 21 - 35 °C2: 87 percent / NaOH; H2O / various solvent(s) / 3.5 h / Heating