Abstract
The ultraviolet absorption
spectra of the mono-salicylideneimines of ethylamine,
ethanolamine, and n-butylamine and of the bis-salicylideneimines
of ethylenediamine, trimethylenediamine,
and 1,3-diaminopropan-2-ol have been separately
examined in various solvents: water, absolute ethanol, dioxan,
and cyclohexane. A comparison of these spectra with those of the N-methylimines
of m- and p-hydroxy-benzaldehydes in similar solvents indicates that the o- and
p-hydroxybenzylideneimines exist mainly as the
dipolar keto amines in very polar, hydrogen-bonding solvents whereas the
m-isomers exist mainly as the enol imine tautomeric
form in all solvents.
Cited by
77 articles.
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