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A binaphtolate titanium complex featuring a linear tetradentate [OSSO]-bis(phenolato) ligand: Synthesis and partial hydrolysis to a homochiral dinuclear complex
被引:10
|作者:
Meppelder, Geert-Jan M.
[1
]
Spaniol, Thomas P.
[1
]
Okuda, Jun
[1
]
机构:
[1] Rhein Westfal TH Aachen, Inst Inorgan Chem, D-52074 Aachen, Germany
关键词:
titanium;
chiral complexes;
C-2-symmetry;
phenolato ligands;
D O I:
10.1016/j.jorganchem.2006.02.006
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
Reaction of [{(R)-C20H12O2}Ti((OPr)-Pr-i)(2)] with 1,4-dithiaalkanediyl-2,2'-bis(6- tert-butyl-4-methyl-phenol) affords the chiral-at-metal complex [{(R)-C20H12O2} Ti{(C6H2O-'Bu-6-Me-4)(2)S(CH2)(2)S}] (1) in low diastereomeric excess. Complex I can be partially hydrolyzed to give a dinuclear species [mu-{(R)-C20H12O2}-mu-O-{(Lambda)-Ti[(C6H2O-Bu-t-6-Me-4)(2)S(CH2)(2)S]}(2)] (2), in which the two titanium centers are homochiral. The molecular structure of 1 and 2 was confirmed by single crystal X-ray analysis, which shows C-2-symmetry in both complexes. (c) 2006 Elsevier B.V. All rights reserved.
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页码:3206 / 3211
页数:6
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