Chemistry Letters, Vol.34, No.7, 912-913, 2005
NMR study of the amide bond-formation using a heterocyclic amine and acid receptor
Recently, a tricyclic receptor capable of binding a carboxylic acid or an amine has been described. A kinetic study of the reaction between benzoic acid and benzylamine to give the amide bond using this heterocyclic receptor has been performed. The results suggest that the receptor plays a significant role in accelcrating the amide bond-formation. To gain further information on the complex formation between the host, benzoic acid and benzylamine, NOESY and T-ROESY experiments were performed.