NMR Spectral Correlations in Some Tröger’s Bases

Thirunarayanan, Ganesamoorthy; Suresh, M.

doi:10.18052/www.scipress.com/ILCPA.23.1

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NMR Spectral Correlations in Some Tröger’s Bases

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Abstract:

Some Tröger’s bases have been synthesised from substituted anilines and paraformaldehyde in presence of Lewis acid catalyst such as anhydrous AlCl3, through electrophilic substitution reaction. The purities of these Tröger’s bases have been checked by their physical constants and spectroscopic data published earlier in the literature. The NMR chemical shift (δ, ppm) of methylene protons and carbon were assigned. The assigned methylene protons and carbon chemical shifts (δ, ppm) of synthesised Tröger’s bases have been correlated with Hammett substituent constants, F and R parameters using single and multi-regression analyses. From the results of statistical analyses, the effects of substituent on methylene protons and carbon were discussed.

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Periodical:

International Letters of Chemistry, Physics and Astronomy (Volume 23)

Pages:

1-11

DOI:

https://doi.org/10.18052/www.scipress.com/ILCPA.23.1

Citation:

G. Thirunarayanan and M. Suresh, "NMR Spectral Correlations in Some Tröger’s Bases", International Letters of Chemistry, Physics and Astronomy, Vol. 23, pp. 1-11, 2014

Online since:

November 2013

Authors:

Ganesamoorthy Thirunarayanan, M. Suresh

Keywords:

Hammett Correlation, NMR Spectra, Substituent Effects, Tröger’s Bases

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