Synthesis, structure, and catalytic activity of organoaluminum complexes with chiral biaryl Schiff-base ligands
Synthesis, structure, and catalytic activity of organoaluminum complexes with chiral biaryl Schiff-base ligands
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手性联芳基希夫碱配体有机铝配合物的合成、结构和催化活性
DOI:
10.1016/j.ica.2014.01.009
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发表时间:
2014-03
影响因子:
2.8
通讯作者:
Zi, Guofu
中科院分区:
文献类型:
--
作者:
Wang, Qiuwen;Hou, Guohua;Song, Haibin;Zi, Guofu
A new series of organoaluminum complexes have been prepared by alkane elimination in good yields from AlMe3and chiral biaryl Schiff-base NO2ligands,1H2-7H2, which are derived from (S)-2-amino-2′-hydroxy-1,1′-binaphthyl or (S)-2-amino-2′-hydroxy-6,6′-dimethyl-1,1′-biphenyl, respectively. However, solvent plays an important role in the formation of the aluminum complexes. For example, treatment of ligand1H2with 1 equiv of AlMe3in THF gives the mononuclear complex (1)AlMe(THF) (8) in 90% yield. While reaction of2H2,3H2,4H2,5H2,6H2or7H2with 1 equiv of AlMe3in benzene gives the binuclear complexes {(2)AlMe}2(9), {(3)AlMe}2(10), {(4)AlMe}2(11), {(5)AlMe}2(12), {(6)AlMe}2(13) and {(7)AlMe}2(14), respectively, in good yields. Complexes8–14have been characterized by various spectroscopic techniques, elemental analyses, and X-ray diffraction analyses. The complexes8–14are active catalysts for the polymerization ofrac-lactide in the presence of isopropanol, leading to the heterotactic-rich polylactides.
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影响因子:
2.8
作者:
Zhang, Haiyan;Chen, Liang;Song, Haibin;Zi, Guofu
通讯作者:
Zi, Guofu
DOI:
10.1016/b0-08-043152-6/00105-4
发表时间:
2001
期刊:
--
影响因子:
--
作者:
B. Saad;U. Suter
通讯作者:
B. Saad;U. Suter
影响因子:
2.1
作者:
Zhou, Xin;Wang, Jun;Gou, Shaohua;Feng, Xiaoming;Liu, Xiaohua
通讯作者:
Liu, Xiaohua
影响因子:
5.5
作者:
Zhao, Wei;Cui, Dongmei;Liu, Xinli;Chen, Xuesi
通讯作者:
Chen, Xuesi
影响因子:
15
作者:
Z. Zhong;P. Dijkstra;J. Feijen
通讯作者:
Z. Zhong;P. Dijkstra;J. Feijen