e.g. Filippa Pettersson or Cancer Res. 75(6) , 1102-12, (2015) or 10.1002/anie.201600521
Angewandte Chemie (International Edition) 2002-08-16
Highly selective formation of eight-membered-ring systems by oxidative cyclization with molybdenum pentachloride-an environmentally friendly and inexpensive access to 2,2'-cyclolignans.
Beate Kramer, Anne Averhoff, Siegfried R Waldvogel