Polymerization- and Solvent-Triggered Cooperativity Between Copper(II) Ions in the Catalysis of the Hydrolysis of Amino Esters by Pyridine-Based Ligands
Polymeric (2) and oligomeric (4, 5) materials made of repeating units of 2,6-diaminomethylpyridine and 4,4′-diphenylmethane have been synthesized with the number of monomeric units (n) ranging from 2 to 29. In 1:1 DMSO/water solutions, these materials are fully soluble and strongly bind CuII ions. The complexes catalyze to different extents the hydrolysis of the p-nitrophenylesters of α-, β-, and γ-amino acids