sodium hydroxide in dichloromethane T=20°C; 0.25 h;

ammonia in ethanol; water 0.666667 h; Heating;

triethylamine in benzene 6 h; Ambient temperature;

sodium methylate 1.) methanol, rt., 12 h; 2.) 120 deg C, 20 mmHg, 2 h;

1: 85 percent / phosphoryl chloride / 3 h / Heating 2: 96 percent / hydrogen/conc. ammonia / 5percent palladium charcoal / methanol View Scheme

1: 85 percent / phosphoryl chloride / 3 h / Heating 2: 96 percent / hydrogen/conc. ammonia / 5percent palladium charcoal / methanol 3: 92 percent / propyl nitrite, HCl / ethanol / 2 h / Ambient temperature View Scheme

1: 85 percent / phosphoryl chloride / 3 h / Heating 2: 96 percent / hydrogen/conc. ammonia / 5percent palladium charcoal / methanol 3: 92 percent / propyl nitrite, HCl / ethanol / 2 h / Ambient temperature 4: 64 percent / pyruvic acid, conc. HCl / aq. ethanol / 6 h / Heating View Scheme

trichlorophosphate 3 h; Heating;