Publication detail
Intramolecular H-bonding in 2,4-disubstituted 6-morpholinomethylphenols
Friedl, Z. Šlais, K.
Czech title
Intramolekulární H-vazby ve 2,4-disubstituovaných 6-morfolinomethylfenolech
English title
Intramolecular H-bonding in 2,4-disubstituted 6-morpholinomethylphenols
Type
journal article - other
Language
en
Original abstract
The acid-base properties of 19 2,4-disubstituted 6-morpholinomethylphenols were studied by means of potentiometric and/or spectrophotometric titration. The evaluated pI values were correlated with Hammett sigma-meta and sigma-para constants for 2-X and 4-Y substituents, respectively. A DSP equation fits adequately (r= 0.993) the wide range of pI values from 4.8 to 9.1 without any deviation due to an intramolecular H-bonding of ortho NO2 groups.
Czech abstract
Acidobazické vlastnosti 19 2,4-disubstituovaných 6-morfolinomethylfenolů byly studovány pomocí potenciometrické a spektrofotometrické titraci. Získané hodnoty pI byly korelovány s Hammettovými konstantami a nebyly pozorovány žádné odchylky pro 2-NO2 substituenty.
English abstract
The acid-base properties of 19 2,4-disubstituted 6-morpholinomethylphenols were studied by means of potentiometric and/or spectrophotometric titration. The evaluated pI values were correlated with Hammett sigma-meta and sigma-para constants for 2-X and 4-Y substituents, respectively. A DSP equation fits adequately (r= 0.993) the wide range of pI values from 4.8 to 9.1 without any deviation due to an intramolecular H-bonding of ortho NO2 groups.
Keywords in English
intramolecular H-bonding, isoelectric focusation, 2,4-disubstituted 6-morpholinomethylphenols, Hammett constants
RIV year
2004
Released
09.09.1997
Publisher
ČSCH
ISSN
0009-2770
Journal
Chemické listy
Volume
71
Number
9
Pages count
2
BIBTEX
@article{BUT40164,
author="Zdeněk {Friedl} and Karel {Šlais},
title="Intramolecular H-bonding in 2,4-disubstituted 6-morpholinomethylphenols",
journal="Chemické listy",
year="1997",
volume="71",
number="9",
month="September",
publisher="ČSCH",
issn="0009-2770"
}