1.1
Reagents:
Potassium carbonate
Solvents:
Water
;
1 h, reflux; reflux → rt
1.2
Solvents:
Ethanol
;
rt
2.1
Reagents:
Potassium carbonate
Catalysts:
Dichlorobis(triphenylphosphine)palladium
Solvents:
Ethanol
,
Water
;
4 h, 50 °C
2.2
Reagents:
Hydrochloric acid
Solvents:
Ethanol
,
Water
;
rt