Thalliumverbindungen als Katalysatoren für Umesterungen mit Glycidol und für Esteraustauschreaktionen mit Glycidylacetat

Thallium compounds as catalysts for transesterifications and ester exchange reactions The transesterification of di-, tri- and tetracarboxylic alkyl esters with 2,3-epoxy-propanol was investigated in the presence of various metal compounds as catalysts. It was found that only thallium compounds catalyse the reactions under mild conditions without decomposition of 2,3-epoxypropanol. Many thallium compounds also proved to be very good catalysts for the reactions of 2,3-epoxypropanol with alkoxysilanes and the ester exchange reactions of di-, tri- and tetracarboxylic alkyl esters with 2,3-epoxypropyl-acetate.     

Konversionsmaterialien für die Energiespeicherung

Conversion materials seem to be the only option at the moment to achieve considerably higher gravimetric and volumetric storage capacities of H storage materials and batteries. Although some technical problems exist with the current materials they are a rewarding field for research and development, with the perspective to achieve significant progress in the development of energy storage systems. It has been shown that new approaches for synthesis of complex nanostructures with a high functionality may open the door to this exciting new class of energy storage materials.