Event submissions
Published
This submission belongs to the session a. General Organic Synthesis of the event The 12th International Electronic Conference on Synthetic Organic Chemistry
Published date
04 Nov, 2008
Citation
Volodymyr L. Mizyuk, Volodymyr V. Shibanov, Lesya O. Kobryn, Dependence of Spectral Parameters in 1H and 13C NMR Spectra of Aromatic Compounds Upon Substituent Spatial-Structural Peculiarities, in Proceedings of The 12th International Electronic Conference on Synthetic Organic Chemistry, 1 November–30 November 2008, MDPI: Basel, Switzerland, doi: 10.3390/ecsoc-12-01232
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Dependence of Spectral Parameters in 1H and 13C NMR Spectra of Aromatic Compounds Upon Substituent Spatial-Structural Peculiarities
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Volodymyr L. Mizyuk 1
Volodymyr V. Shibanov 1
Lesya O. Kobryn 1
1. Ukrainian Academy of Printing, Lviv, Ukraine
Abstract
The presence of opposite by ßOH shifts of ortho-protons (downfield, if the substitution takes place in ?-position and upper-field – in ?-position) by the substitution of hydrogen atoms for methyl groups in alkyl chain of alkylbenzenes has been found. The independent influence of both effects at the simultaneous branching near ?- and ?-hydrocarbon atoms of alkyl chain has been determined. The mentioned phenomena has been explained by conformational peculiarities of alkylbenzenes structure.
Keywords
alkylbenzenes
chemical shift
Hammet constant
Hydroamination of alkynes as a new source of Imines for Ugi MCRs - Scope and Limitations
Hydrazinolysis of 1,2,4,5-benzenetetracarboxylic bis-(substituted)phenylimides