Synthesis, structure, and catalytic activity of chiral silver(I) and copper(II) complexes with biaryl-based nitrogen-containing ligands
Synthesis, structure, and catalytic activity of chiral silver(I) and copper(II) complexes with biaryl-based nitrogen-containing ligands
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联芳基含氮配体手性银(I)和铜(II)配合物的合成、结构和催化活性
DOI:
10.1016/j.ica.2010.11.023
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发表时间:
2011-01
影响因子:
2.8
通讯作者:
Zi, Guofu
中科院分区:
文献类型:
--
作者:
Zhang, Haiyan;Chen, Liang;Song, Haibin;Zi, Guofu
A series of chiral Ag(I) and Cu(II) complexes have been prepared from the reaction between AgX (X=NO3, PF6, OTf) or CuX2(X=Cl, ClO4) and chiral biaryl-based N-ligands. The rigidity of the ligand plays an important role in the Ag(I) complex formation. For example, treatment of chiral N3-ligands 1–3 with half equiv of AgX (X=NO3, PF6, OTf) gives the chiral bis-ligated four-coordinated Ag(I) complexes, while ligand 4 affords the two-coordinated Ag(I) complexes. Reaction of AgX with 1 equiv of chiral N4-ligands 5, 7, 8 and 10 gives the chiral, binuclear double helicate Ag(I) complexes, while chiral mono-nuclear single helicate Ag(I) complexes are obtained with N4-ligands 6 and 9. Treatment of either N3-ligand 1 or N4-ligand 9 or 10 with 1 equiv of CuX2(X=Cl, ClO4) gives the mono-ligated Cu(II) complexes. All the complexes have been characterized by various spectroscopic techniques, and elemental analyses. Seventeen of them have further been confirmed by X-ray diffraction analyses. The Cu(II) complexes do not show catalytic activity for allylation reaction, in contrast to Ag(I) complexes, but they do exhibit catalytic activity for Henry reaction (nitroaldol reaction) that Ag(I) complexes do not.
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影响因子:
15
作者:
Evans, DA;Seidel, D;Downey, CW
通讯作者:
Downey, CW
影响因子:
5.6
作者:
I. Ojima
通讯作者:
I. Ojima
影响因子:
2.3
作者:
Li Xiang;Hai-bin Song;Guofu Zi
通讯作者:
Li Xiang;Hai-bin Song;Guofu Zi
DOI:
10.5059/yukigoseikyokaishi.50.1131
发表时间:
1992-12
影响因子:
0.2
作者:
R. Noyori
通讯作者:
R. Noyori
影响因子:
2.3
作者:
Qiuwen Wang;Li Xiang;Guofu Zi
通讯作者:
Qiuwen Wang;Li Xiang;Guofu Zi