American Chemical Society
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Catalytic Reductive Coupling of 9-Bromofluorene

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journal contribution
posted on 2006-01-02, 00:00 authored by Venugopal Shanmugham Sridevi, Weng Kee Leong, Yinghuai Zhu
The reductive homocoupling of 9-bromofluorene is catalyzed by 0.1 mol % Ru3(CO)12 in refluxing xylene, with a TON in excess of 3000. A stoichiometric reaction affords the novel cluster Ru43-OMe)(μ3-OH)(μ-Br)2(CO)10, which is found to be even more catalytically active. Further reaction of this cluster with bromofluorene gives another novel cluster, Ru44-O)(μ-Br)6(CO)8, which is inactive.