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Issue 7, 2001
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Multiple substitutions on (η6-arene)tricarbonylchromium(0) complexes

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The treatment of representative (η6-arene)tricarbonylchromium(0) complexes 1ac and 4 with 3 equivalents of LiTMP followed by an electrophilic quench with Me3SiCl provided a series of trisilylated complexes 2ac and 5a. The use of Me3SnCl and Ph2PCl as electrophile also yielded unusual trisubstituted complexes 13a and 13b. The X-ray crystallographic structure of complex 13b is reported. Deuteration studies using deuteroacetic acid as the electrophile led to the observation of a trideuterated species presumably derived from a trianionic species formed during the reaction. Efficient disubstitution was observed when complexes 7, 9 and 11 were treated with 3 equivalents of LDA followed by an electrophilic quench with Me3SiCl

Graphical abstract: Multiple substitutions on (η6-arene)tricarbonylchromium(0) complexes

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The article was received on 01 Dec 2000, accepted on 12 Feb 2001 and first published on 08 Mar 2001

Article type: Paper
DOI: 10.1039/B009639N
Citation: J. Chem. Soc., Perkin Trans. 1, 2001,0, 636-641
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    Multiple substitutions on (η6-arene)tricarbonylchromium(0) complexes

    S. E. Gibson (née Thomas), J. W. Steed and S. Sur, J. Chem. Soc., Perkin Trans. 1, 2001, 0, 636
    DOI: 10.1039/B009639N

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