Abstract
A nickel-catalyzed arylation of aromatic amines using arylzinc reagents with trimethylammonium salts formed in situ is developed. Compared with previous systems using ammonium salts as the starting materials and complexes of pre-prepared nickel catalysts, this reaction directly employed an N, N-dimethyl(het)arylamine as the coupling partner and commercial Ni(COD)2 /TMEDA as the catalyst, greatly simplifying the experimental procedure, decreasing the cost, and being especially suitable for scale-up production processes.
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