5 years ago

Reduction of Diphenylacetylene Mediated by Rare-Earth Ferrocene Diamide Complexes

Reduction of Diphenylacetylene Mediated by Rare-Earth Ferrocene Diamide Complexes
Wenliang Huang, Jonathan L. Brosmer, Paula L. Diaconescu
The synthesis and characterization of Ln-C4Ph4-K, [(NNTBS)Ln(η2-C4Ph4)][K(THF)x] (Ln = Sc, Y, Lu), rare-earth metal complexes supported by a ferrocene diamide ligand, NNTBS (NNTBS = fc(NSitBuMe2)2, fc = 1,1′-ferrocenediyl), were accomplished. The preparation of the half-sandwich compounds, Ln-naph-K, [(NNTBS)Ln(μ-C10H8)][K(THF)2] (Ln = Sc, Y, Lu, La), was necessary in order to obtain high yields of rare-earth metallacyclopentadienes. Unlike Y and Lu, La did not show the same reactivity toward PhCCPh. The characterization of the new metal complexes was accomplished by NMR spectroscopy, elemental analysis, and single-crystal X-ray diffraction.

Publisher URL: http://dx.doi.org/10.1021/acs.organomet.7b00541

DOI: 10.1021/acs.organomet.7b00541

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