Journal of organometallic chemistry

Ein neuartiger ligandentyp zur CC-verknüpfung von Cycloalkenen mit CO2 am (Lig) Ni (0-System, folgereaktionen

H Hoberg, A Ballesteros, A Sigan

Index: Hoberg, Heinz; Ballesteros, Alfredo; Sigan, Andrei Journal of Organometallic Chemistry, 1991 , vol. 403, # 1.2 p. C19 - C22

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Citation Number: 23

Abstract

Abstract Cyclooctene reacts with CO 2 on the (Lig) Ni 0-system I [Lig=(c C 6 H 11) 2 PCH 2 CH 2-2-Pyridyl] to form the bicyclic complex IV containing a five-membered ring unit. Protonolysis of these complex with Et 2 O/HCl yields quantitatively cyclooctyl carboxylic acid V, while treatment with dilute inorganic acids causes a sequence of reactions to occur which lead to the formation of β-γ-unsaturated cyclooctenyl carboxylic acid VI (92%).

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