1.1
Reagents:
Sodium nitrite
,
Hydrochloric acid
Solvents:
Acetonitrile
,
Water
;
30 min, 0 °C; 30 min, 0 °C
1.2
Reagents:
Potassium iodide
Solvents:
Water
;
20 min, 0 °C; 0 °C → rt; 16 h, rt
1.3
Reagents:
Sodium sulfite
Solvents:
Dichloromethane
;
10 min, rt

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