Journal
ARKIVOC
Volume -, Issue -, Pages 116-128Publisher
ARKAT USA INC
DOI: 10.3998/ark.5550190.0007.a15
Keywords
substituted 2-pyridones; LFER analysis; IR; NMR and UV spectra
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Spectral characteristics of the two series of previously synthesized and identified 4,6-disubstituted- 3-cyano-2-pyridones were determined, and corresponding H-1 NMR chemical shifts and IR and UV frequencies were correlated with LFER parameters. A variety of substituents were employed for both alkyl and aryl substitution, and fairly good correlations were obtained, using simple Hammett and Hammett-Taft dual parameter equations, as well as the more sophisticated multiparameter regression approaches. It was established that both polar and steric effects influence the spectra of the investigated compounds.
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