32212-19-4Relevant articles and documents
Potentiometric study of acid-base equilibria of 3,5-disubstituted 1,2,4,5-oxadiazaboroles in nonaqueous media
Dueruest, Yasar,Dueruest, Nedime,Akcan, Muharrem
, p. 718 - 720 (2008/02/13)
The protonation constants of the amino nitrogens of some substituted 1,2,4,5-oxadiazaboroles have been determined in acetic acid by means of potentiometric titration with perchloric acid. pKa values of the title compounds were interpreted on the basis of structural effects due to the substituents and the main skeleton by plotting pBH+ value versus Hammett constants. Good correlations between PKBH+, σ constants, and δC=N and δNH values were also obtained.