Sonogashira reaction on pyridinium N-heteroarylaminides
2011
Córdoba, Marta | Izquierdo, M Luisa | Alvarez-Builla, Julio
The reactivity of N-(5-iodopyridin-2-yl)aminide in a copper-free Sonogashira cross-coupling process is reported. The reaction proceeds on using PdCl₂(PPh₃)₂ and DABCO as the base under microwave irradiation in acetonitrile or water as solvents. The process can also be carried out by traditional heating in acetonitrile on using Pd(AcO)₂/DABCO with Cs₂CO₃.
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