1: 1)nitrosylsulfuric acid, sodium nitrite, 2) cuprous bromide, 48percent hydrobromic acid / 1) acetic acid, 1 - 5 deg C, 20 min, 2) 1 - 5 deg C, 20 min 2: 5 percent / KMnO4 / acetone / Ambient temperature View Scheme

ammonium acetate T=130 - 140°C; 2 h;