Titanium and zirconium complexes of preorganized tripodal triaryloxide ligands

Titanium and zirconium complexes of preorganized tripodal triaryloxide ligands
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DOI:
10.1021/ja053740m
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发表时间:
2005-08-31
影响因子:
15
通讯作者:
Kawaguchi, H
Kawaguchi, H
中科院分区:
化学1区
文献类型:
--
作者:
Akagi, F;Matsuo, T;Kawaguchi, H

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用三(2-氧基-3,5-二叔丁基苯基)甲烷,[O_3]_3~-合成了通式为[O_3]M_x(M=Ti,X=NEt_2,Cl,CH_2Ph;M=Zr,X=CH_2Ph)的钛、锆络合物。钛配合物中的三脚架[O_3]配体采用同位和反构象,而锆的合成络合物则容易地进行C-−H活化,得到5-氨基甲酸酯类化合物[O_3C]Zr(THF)_3。
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 thesyn- and theanti-conformation, while thesyncomplex of zirconium undergoes facile C−H activation to give a 5-carbametalatrane [O3C]Zr(THF)3.