Notes
“Substituent on Benzenesulfonyl Group” Effect in Use of 8-Benzenesulfonamidoquinoline Derivatives as Chelate Extractant
2003 Volume 19 Issue 2 Pages 321-324
Details
2003 Volume 19 Issue 2 Pages 321-324
“Substituent on benzenesulfonyl group” effect of 8-benzenesulfonamidoquinoline [N-(8-quinolyl)benzenesulfonamide, Hbsq] as bidentate chelate extractant for divalent metal cations was investigated with using Hbsq and its eight derivatives. Introduction of electron-withdrawing substituent on the benzenesulfonyl group in Hbsq enhanced the extractability that originated from its inductive effect. Furthermore, a bulky substituent on an ortho-position of the benzenesulfonyl group resulted in no steric effect in extraction, whereas the existence of two substituents on each ortho-position caused lower extraction performance due to steric hindrance.
