1.1
Catalysts:
Zinc triflate
Solvents:
Acetonitrile
;
24 h, reflux
1.2
Reagents:
Sodium carbonate
Catalysts:
[1,1′-Bis(diphenylphosphino)ferrocene]dichloropalladium
Solvents:
1,2-Dimethoxyethane
,
Water
;
24 h, reflux
1.3
Reagents:
Dibromotriphenylphosphorane
,
Diisopropylethylamine
Solvents:
Dichloromethane
;
18 h, rt
1.4
Reagents:
Sodium hydride
Solvents:
Dimethylformamide
;
1 h, 40 °C
1.5
Catalysts:
Tetrabutylammonium iodide
;
20 h, 45 °C
1.6
Solvents:
Dichloromethane
;
rt