hydrogenchloride; 2-oxo-propionic acid in ethanol 6 h; Heating;

1: 88 percent / 1.) sodium methoxide / 1.) methanol, rt., 12 h; 2.) 120 deg C, 20 mmHg, 2 h 2: 85 percent / phosphoryl chloride / 3 h / Heating 3: 96 percent / hydrogen/conc. ammonia / 5percent palladium charcoal / methanol 4: 92 percent / propyl nitrite, HCl / ethanol / 2 h / Ambient temperature 5: 64 percent / pyruvic acid, conc. HCl / aq. ethanol / 6 h / Heating 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

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

1: 88 percent / 1.) sodium methoxide / 1.) methanol, rt., 12 h; 2.) 120 deg C, 20 mmHg, 2 h 2: 85 percent / phosphoryl chloride / 3 h / Heating 3: 96 percent / hydrogen/conc. ammonia / 5percent palladium charcoal / methanol 4: 92 percent / propyl nitrite, HCl / ethanol / 2 h / Ambient temperature 5: 64 percent / pyruvic acid, conc. HCl / aq. ethanol / 6 h / Heating View Scheme

1: 92 percent / propyl nitrite, HCl / ethanol / 2 h / Ambient temperature 2: 64 percent / pyruvic acid, conc. HCl / aq. ethanol / 6 h / Heating View Scheme