An ovelp otassium tert-butoxide-mediated amine acyl exchangeo fN,N-disubstituted formamides with aromatic carbonylderivatives in asequential C À Nb ondc leavage/formation process leading to aromatic amides is described. This methodology tolerates awide range of aromaticcarbonyl compounds, including aromatica ldehydes,a cylc hlorides, unactivated esters, anda cid anhydrides.T he usage of inexpensive and readily available reagents,b road sub-strate scope,a nd the simple,m ild (50 8 8C) and transition metal-free conditions make this protocol very practical. In addition,aplausible reactionm echanism is proposed on the basis of experimental observations.

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