Lu, Liang-Qiu; Li, Yuehui; Junge, Kathrin; Beller, Matthias Angewandte Chemie - International Edition, 2013 , vol. 52, # 32 p. 8382 - 8386 Angew. Chem., 2013 , vol. 125, # 32 p. 8540 - 8544