1: With titanium tetrachloride in dichloromethane T=-96°C; 0.166667 h; Inert atmosphere; 2: With N-ethyl-N,N-diisopropylamine in dichloromethane T=-96 - 20°C; 1.5 h; Inert atmosphere; 3: With water; ammonium chloride in dichloromethane

Stage #1: With  titanium tetrachloride in  dichloromethane T=-96°C; 0.5 h;  Inert atmosphere; Stage #2: With  N-ethyl-N,N-diisopropylamine in  dichloromethane T=-96 - 20°C;  Inert atmosphere; Stage #3: With  water; ammonium chloride in  dichloromethane  

With  sodium azide in  N,N-dimethyl-formamide T=75°C; 4 h;