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Effect of substituents on the C-13 NMR chemical shifts of para-substituted alpha-phenyl-beta-pyridylacrylic acids

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1997
Authors
Jovanović, Bratislav Ž.
Misić-Vuković, Milica
Drmanić, Saša
Canadi, JJ
conferenceObject (publishedVersion)
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Abstract
The C-13 NMR spectra of para-substituted alpha-phenylcinnamic and 3- and 4-pyridylacrylic acids, with a wide range of substituents effects, were determined in deuterated dimethylsulfoxide (DMSO-d(6)). The effect of substituents in both the alpha-phenyl and beta-pyridine groups in these acids is investigated using linear free energy relationships and multiple regression analysis as applied to C-13 NMR chemical shifts of the C-alpha and C-beta of the ethylenic bond and the carboxylic group carbon. Dissection of the alpha-phenyl substituent effects into the inductive and resonance components, using the dual substituent parameter (DSP) method, points to a blend of inductive and resonance effects in the pi-electronic system.
Keywords:
NMR spectroscopy / spectra-structure correlation / para-substituted alpha-phenyl-pyridylacrylic acids
Source:
Journal of Molecular Structure, 1997, 410, 39-41
Publisher:
  • Elsevier, Amsterdam

DOI: 10.1016/S0022-2860(96)09563-4

ISSN: 0022-2860

WoS: A1997XL06500010

Scopus: 2-s2.0-12644286568
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URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/135
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  • Radovi istraživača / Researchers’ publications (TMF)
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Tehnološko-metalurški fakultet

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