1. Institute of Organic Chemistry Johannes Kepler University Linz Altenbergerstr. 69 4040 Linz Austria
2. Department of Chemical Drugs Faculty of Pharmacy Masaryk University Palackeho 1946/1 612 00 Brno Czechia
3. Dipartimento di Chimica e Biologia Università di Salerno Via Giovanni Paolo II, 132 84084 Fisciano SA Italy
4. Institute of Catalysis Johannes Kepler University Linz Altenbergerstr. 69 4040 Linz Austria
5. Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
6. Department of Chemistry Cologne University Greinstrasse 4 50939 Cologne Germany