INTRAMOLECULAR H-BONDING IN 2,4-DISUBSTITUTED 6-MORPHOLINOME-THYLPHENOLS

Authors
FRIEDL Z SLAIS K
Citation
Z. Friedl et K. Slais, INTRAMOLECULAR H-BONDING IN 2,4-DISUBSTITUTED 6-MORPHOLINOME-THYLPHENOLS, Chemicke listy, 91(9), 1997, pp. 679-680
Citations number
7
Categorie Soggetti
Chemistry
Journal title
Chemicke listy → ACNP
ISSN journal
00092770
Volume
91
Issue
9
Year of publication
1997
Pages
679 - 680
Database
ISI
SICI code
0009-2770(1997)91:9<679:IHI26>2.0.ZU;2-#
Abstract
The acid-base properties of nineteen 2,4-disubstituted 6-morpholinomet hylphenols were studied by means of potentiometric and/or spectrophoto metric titration. The evaluated pi values were correlated with Hammett sigma(m) and sigma(p)(0) constants for 2-X and 4-Y substituents, resp ectively. 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 intramolecu lar H-bonding of ortho NO2 groups.