1: diisobutylaluminium hydride / toluene / 20 °C / |Inert atmosphere 2: sodium hydride / N,N-dimethyl-formamide / 3 h / 0 - 20 °C / |Inert atmosphere 3: palladium 10 on activated carbon; hydrogen / methanol / 3 h / 20 °C / |Inert atmosphere 4: 1,1-dimethylnitroethane; trimethylsilylazide / acetonitrile / 2 h / 20 °C / |Inert atmosphere; |Cooling 5: FeBr2 / toluene / 16 h / 140 °C / |Schlenk technique; |Inert atmosphere View Scheme