Abstract
Abstract The dipole moments, infrared spectra and rate constants of hydrolysis of ε-caprolactam derivatives have been determined in order to elucidate the difference in reactivity. The great stability of N-methyl-ε-caprolactam is expected, due to the increase of reasonance of amide linkage. Ring dimer of ε-caprolactam is stable for hydrolysis due to the strong intramolecular hydrogen bonds and the reactivity of ring oligomers of ε-caprolactam increases as the ring becomes larger.
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