NH-acidities and Hammett correlation of 3-para substituted phenyl-1,2,4-oxadiazol-5(4H)-ones and 1,2 lambda(4) 3,5-oxathiadiazole 2-oxides in nonaqueous media
Yükleniyor...
Tarih
2014
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Scientific Technical Research Council Turkey-Tubitak
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
NH acidities of some 3-(p-substitutedphenyl)-1,2,4-oxadiazol-5(4H)-ones and 4-(p-substitutedphenyl)-1,2 lambda(4)3,5-oxathiadiazole 2-oxides were determined in methanol by means of potentiometric titration with sodium methoxide. pK(alpha) values of the title compounds calculated from the potentiometric data were interpreted on the basis of structural effects caused by para-substituted groups on the phenyl ring by plotting pK(alpha) values versus Hammett sigma(+)(p) constants, which gave excellent linear correlations.
Açıklama
Anahtar Kelimeler
Potentiometry, Oxadiazol-5(4H)-one, Oxathiadiazol 2-oxide, Linear Hammett Correlation
Kaynak
Turkish Journal Of Chemistry
WoS Q Değeri
Q3
Scopus Q Değeri
Q3
Cilt
38
Sayı
1
