- Tytuł:
- Hammett spectral correlations in benzofuranyl flavonols
- Autorzy:
-
Thirunarayanan, G.
Sekar, K. G. - Powiązania:
- https://bibliotekanauki.pl/articles/412326.pdf
- Data publikacji:
- 2014
- Wydawca:
- Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
- Tematy:
-
Benzofuranyl flavonols
Hammett equation
IR spectra
NMR spectra
Regression analysis - Opis:
- 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.
- Źródło:
-
International Letters of Chemistry, Physics and Astronomy; 2014, 6; 39-47
2299-3843 - Pojawia się w:
- International Letters of Chemistry, Physics and Astronomy
- Dostawca treści:
- Biblioteka Nauki
Artykuł