Hammett spectral correlations in benzofuranyl flavonols

• Autorzy: Thirunarayanan G. , Sekar K. G.
• Języki publikacji: EN

Abstrakty

EN

A series containing eleven benzofuranyl flavonols have been prepared by cyclization of 3-hydroxybenzofuranyl chalcones with 30 % hydrogen peroxide in the presence of sodium bicarbonate. The synthesized flavonols were characterized by their physical constants, analytical and spectroscopic data. The infrared spectral νOH, CO stretches(cm-1), NMR chemical shifts of OH, CO(δ, ppm) of these flavonols were assigned and correlated with Hammett substituent constants, F and R parameters using single and multi linear regression analysis. From the results of statistical analyses, the effects of substituents on the above group frequencies were discussed.

Słowa kluczowe

EN

Benzofuranyl flavonols; Hammett equation; IR spectra; NMR spectra; Regression analysis

• Wydawca: Przedsiębiorstwo Wydawnictw Naukowych "DARWIN"
• Czasopismo: International Letters of Chemistry, Physics and Astronomy
• Rocznik: 2014
• Tom: Vol. 6
• Strony: 39--47
• Opis fizyczny: Bibliogr. 20 poz., tab., wz.

Twórcy

autor

Thirunarayanan G.

• Department of Chemistry, Annamalai University, Annamalainagar - 608002, Tamil Nadu, India

autor

Sekar K. G.

• Department of Chemistry, National College, Tiruchirrappalli - 620001, Tamil Nadu, India

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