"Induced Fit" in Chiral Recognition: Epimerization upon Dimerization in the Hierarchical Self-Assembly of Helicate-type Titanium(IV) Complexes

被引:69
作者
Albrecht, Markus [1 ]
Isaak, Elisabeth [1 ]
Baumert, Miriam [1 ]
Gossen, Verena [1 ]
Raabe, Gerhard [1 ]
Froehlich, Roland [2 ]
机构
[1] Rhein Westfal TH Aachen, Inst Organ Chem, D-52074 Aachen, Germany
[2] WWU Munster, Inst Organ Chem, D-48149 Munster, Germany
关键词
CD spectroscopy; helicate; molecular recognition; NMR spectroscopy; stereochemistry; TRIPLE-STRANDED HELICATE; CRYSTAL-STRUCTURE; MESO-HELICATE; VERSATILE; IONS;
D O I
10.1002/anie.201006448
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Undecided! A titanium(IV) triscatecholate bearing chiral ester groups shows different CD spectra in methanol and DMSO. The observation of different stereoisomers lies in the preferred conformation of the side groups in the monomer and dimer, which leads to different chiral induction in the different species. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:2850 / 2853
页数:4
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