A variety of mono-oxidized pyridine, bipyridine, terpyridine, and pyridine/pyridazine are readily prepared under mild conditions using Pyrolusite MnO2. This phase has been characterized by means of X-ray powder diffraction and scanning electron microscopy. The oxidative activity is in keeping with the nature, morphology, and surface area of the MnO2 reagent.
An Easy Entry into Schiff Base Molecules Bearing a Pendant Primary Alcohol Function for Hydrogen Bonding
作者:Raymond Ziessel、Patrick Nguyen
DOI:10.1055/s-2004-834943
日期:——
2 as oxidant. Corresponding Schiffbases were prepared with aromatic or aliphatic amines carrying various functions such as paraffin chains, terminal acrylates and a second nitrogen atom. Various flexible tethers have been used for the ditopic ligands synthesis. These ligands formed dinuclear helicates for the shorter chains. The dinuclear copper(I) complex prepared from the CH 2 -CH 2 bridge is aggregated