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...
Küçük Resim

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

Künye