New Upper Rim Pyridine-Bridged Calix[4]arenes: Synthesis and Complexation Properties toward Neutral Molecules and Ammonium Ions in Organic Media
作者:Arturo Arduini、William M. MGregor、Andrea Pochini、Andrea Secchi、Franco Ugozzoli、Rocco Ungaro
DOI:10.1021/jo960937b
日期:1996.1.1
of calix[4]arenes, diametrically bridged at the upper rim with pyridino systems, has been synthesized. The shape, rigidity, and chemical structure of the bridge influence the host-guest complexation properties of these systems in solution toward several neutral molecules having acidic C-H bonds. Additionally, selective complexation of methylammonium tosylate in comparison with other ammonium salts has