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The Effect of the chiral ligand on the stereoselectivity in the diastereoisomer of the metal complex

手性配体对金属配合物非对映异构体立体选择性的影响

基本信息

批准号：
03640534
负责人：
KUSHI Yoshihiko
金额：
$ 1.22万
依托单位：
Osaka University General Education (1992)Okazaki National Research Institutes (1991)
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1991
资助国家：
日本
起止时间：
1991 至 1992
项目状态：
已结题

项目摘要

The stereoselectivity of metal complexes has been studied:(1) The diastereoisomers of the copper(II) and cobalt(III) complexes having the chiral Schiff-base ligand have been newly prepared and their crystal structures have been determined. The chiral Schiff-bases studied are 1-phenylethylamine(phenea), secondary-butylamine (butyl), and secondary-heptylamine(heptyl) groups. The stereoselective diastereoisomer formations were confirmed on each compound.(2) The diastereoisomers of the copper(II) and palladium(II) complexes having the chiral monodentate primary-amine and several cyclic imidato ligands have been newly prepared and their crystal structures have been determined. The chiral amine ligands studied are 1-phenylethylamine (phenea) and secondary-butylamine(butyl). The stereoselective diastereoisomer formations were confirmed on each compound and several staggered rotamers of the phenea ligand have been found.(3) The complexes having helical chirality were newly prepared and their crystal structures were determined. The stereoselective C-C bond formations in these systems were found. Helical trinuclear metal complexes having the ferrocene group were also prepared and, moreover, the novel metal-sulfur tetranuclear clusters were found for the metal=palladium(II) and platinum(II), respectively. From these studies, several types of the diastereoselectivity on the metal complexes were newly found and were confirmed.

研究了金属配合物的立体选择性：（1）新合成了含手性席夫碱配体的铜（II）和钴（III）配合物的非对映异构体，并测定了它们的晶体结构。研究的手性席夫碱是1-苯乙胺（phenea），仲丁胺（丁基）和仲庚胺（庚基）基团。在每种化合物上证实了立体选择性非对映异构体的形成。(2)合成了手性单齿伯胺和几种环状亚胺配体的铜（II）和钯（II）配合物的非对映异构体，并测定了它们的晶体结构。研究的手性胺配体是1-苯乙胺（phenea）和仲丁胺（丁基）。在每个化合物上证实了立体选择性非对映异构体的形成，并且已经发现了phenea配体的几种交错旋转异构体。(3)合成了具有螺旋手性的配合物，并测定了它们的晶体结构。在这些体系中发现了C-C键的立体选择性形成，并制备了含二茂铁基的螺旋状三核金属配合物，此外，还发现了钯（II）和铂（II）的新型金属硫四核簇合物。从这些研究中，几种类型的非对映选择性的金属配合物是新发现的，并得到证实。