1.1
Reagents:
Nitric acid
,
Oxygen
Catalysts:
Cupric nitrate
Solvents:
Acetonitrile
,
Water
;
4 h, 1 atm, 50 °C
2.1
Reagents:
Thiophenol
,
Potassium carbonate
Solvents:
Dimethyl sulfoxide
,
Acetonitrile
;
24 h, 100 °C
2.2
Reagents:
Ammonium chloride
Solvents:
Water