1.1
 
 
 
 Reagents:
 
 
 
 Acetic acid
 
 
 
 
 , 
 
 
 
 Sodium nitrite
 
 
 
 
 , 
 
 
 
 Hydrochloric acid
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 Solvents:
 
 
 
 Water
 
 
 
 
 
 
 
 
 
 
 ; 
 1 h, < 9 °C; 30 min, < 9 °C 
 1.2
 
 
 
 
 
 
 
 
 
 Solvents:
 
 
 
 Ethyl acetate
 
 
 
 
 
 
 
 
 
 
 ; 
 5 min, cooled 
 1.3
 
 
 
 Reagents:
 
 
 
 Potassium iodide
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 Solvents:
 
 
 
 Water
 
 
 
 
 
 
 
 
 
 
 ; 
 1.25 h, < 9 °C; 1.5 h, 9 °C → rt 
 
 3003926540 



 




 
 
 
 
 
 
 
 
 
 
 
 
 
 
 