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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Homochiral coordination cages assembled from dinuclear paddlewheel nodes and enantiopure ditopic ligands: syntheses, structures and catalysis
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Homochiral coordination cages assembled from dinuclear paddlewheel nodes and enantiopure ditopic ligands: syntheses, structures and catalysis

机译:由双核桨轮节点和对映纯的对位配体组装的同手性协调笼:合成,结构和催化

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摘要

A series of homochiral metal-organic cages (MOCs) have been obtained from self-assembly of Cu(II) salts with chiral N, N'-(bicyclo[2,2,2] oct-7-ene-tetracarboxylic)-bis-amino acids. Single-crystal X-ray diffraction analyses reveal that these compounds show a lantern-type cage structure, in which one pair of Cu-2(CO2)(4) paddlewheels is linked by four diacid ligands. The resulting homochiral cages have been fully characterized by EA, TOF-MS, TGA, VTPXRD, IR, UV, and CD measurements. The catalytic tests reveal that these Cu(II) cages are effective in cyclopropanation with excellent diastereoselectivity (up to 99 : 1 E/Z). In addition, the cage catalysts can promote the aziridination reaction with PhI=NNs.
机译:从具有手性N,N'-(双环[2,2,2] oct-7-烯-四羧酸)-双的Cu(II)盐的自组装中获得了一系列同手性金属有机笼(MOC) -氨基酸。单晶X射线衍射分析表明,这些化合物显示出灯笼型笼状结构,其中一对Cu-2(CO2)(4)桨轮通过四个二酸配体相连。 EA,TOF-MS,TGA,VTPXRD,IR,UV和CD测量已完全表征了所得的手性笼。催化测试表明,这些Cu(II)笼在环丙烷化中具有出色的非对映选择性(高达99:1 E / Z)。此外,笼式催化剂可以促进PhI = NNs的叠氮反应。

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