Copper-Catalyzed N-Arylation of Amines/Amides in Poly(ethylene glycol) as Recyclable Solvent Medium

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Abstract
The Buchwald N-arylation of amines and amides is achieved efficiently in PEG (400 Daltons) as solvent medium. The solvent and catalyst recyclability is studied. Interestingly amides underwent N-arylation with better yields.