Collect. Czech. Chem. Commun.
1985, 50, 2827-2833
https://doi.org/10.1135/cccc19852827
Study of the acid-base species of di-n-butyl N-(4-antipyryl)amidophosphate
Jiří Příhodaa, Alois Zemana and Josef Havelb
a Department of Inorganic Chemistry, Purkyně University, 611 37 Brno
b Department of Analytical Chemistry, Purkyně University, 611 37 Brno
Abstract
The acid-base species of di-n-butyl N-(4-antipyryl)amidophosphate present in aqueous solutions of perchloric acid were studied. The compound was observed to protonate as far as the second step in this medium, with protonation constants log βH1 = 0.49 ± 0.02 and log βH2 = -1.34 ± 0.07. The distribution of the solute between chloroform and aqueous solutions of perchloric acid was also investigated, and the value of log Kex = 2.55 was obtained.
