sodium hydride 1.) DMF, 45 min, 2.) DMF, 4 h; Yield given. Multistep reaction;

1: conc. HCl; HCl gas 2: NH4OH 3: NaH / dimethylformamide / 16 h View Scheme

1: NH4OH 2: NaH / dimethylformamide / 16 h View Scheme

sodium hydride in N,N-dimethyl-formamide Alkylation; 16 h;

1: m-chloroperbenzoic acid / CH2Cl2 / 4 h / Ambient temperature 2: 55 percent / pyridinium chlorochromate / CH2Cl2 / 1 h 3: 1.98 g / Ac2O / 2.5 h / 50 °C 4: 1.) NaH, DMSO / 1.) THF, 15 min, 2.) THF, 15 min View Scheme