N-Trimethylamine hydrochloride in dichloromethane 4 h; cooling;

sodium hydroxide in dichloromethane

1.1: 80 percent / NaH / dimethylformamide / 4 h / Heating 2.1: 75 percent / potassium carbonate / 1,2-dichloro-ethane / 4 h / Heating 3.1: hydrogen chloride / 1,2-dichloro-ethane / 0.75 h 3.2: 96 percent / ethanol / 1.5 h / Heating View Scheme

sodium hydride in N,N-dimethyl-formamide 4 h; Heating;

sodium hydride in N,N-dimethyl-formamide 4 h; Heating;