Bianca F. Bonini,*a Gerjan Kemperman,a,b Sander TH Willems,a,b Mariafrancesca Fochi,a Germana Mazzanti a and Binne Zwanenburg*b a Dipartimento di Chimica Organica “A.Mangini”, Università di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy. Fax +39 (0) 51 6443654; E-mail: bonini@ms.fci.unibo.it b Department of Organic Chemisry, NSR Centre for Molecular Structure, Design and Synthesis, University of Nijmegen, Toernooiveld, 6525 ED ...