1: 66 percent / sodium acetate, bromine / acetic acid / 3 h 2: 71 percent / triethylamine / propan-2-ol / 1 h / Heating 3: 20 percent / propan-2-ol / 3 h / Heating View Scheme

1: 71 percent / triethylamine / propan-2-ol / 1 h / Heating 2: 20 percent / propan-2-ol / 3 h / Heating View Scheme

1: 84 percent / ammonia / methanol / 72 h 2: 66 percent / sodium acetate, bromine / acetic acid / 3 h 3: 71 percent / triethylamine / propan-2-ol / 1 h / Heating 4: 20 percent / propan-2-ol / 3 h / Heating View Scheme

in isopropyl alcohol 3 h; Heating;

thionyl chloride in N,N-dimethyl-formamide 5 h; Ambient temperature;