American Chemical Society
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Titanium and Zirconium Complexes of Preorganized Tripodal Triaryloxide Ligands

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posted on 2005-08-31, 00:00 authored by Fumio Akagi, Tsukasa Matsuo, Hiroyuki Kawaguchi
Tri(2-oxy-3,5-di-tert-butylphenyl)methane, [O3]3- has been used to prepare titanium and zirconium complexes of the general formula [O3]MX (M = Ti, X = NEt2, Cl, CH2Ph; M = Zr, X = CH2Ph). The tripodal [O3] ligand in titanium complexes adopt the syn- and the anti-conformation, while the syn complex of zirconium undergoes facile C−H activation to give a 5-carbametalatrane [O3C]Zr(THF)3.