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

Index: Angew. Chem. Int. Ed. Engl. 41(16) , 2981-2, (2002)

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Abstract