Sun Li-Ying, Sinha Narayan, Yan Tao, Wang Yi-Shou, Tan Tristan T Y, Yu Le, Han Ying-Feng, Hahn F Ekkehardt
Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science, Northwest University, Xi'an, 710127, P. R. China.
Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 30, 48149, Münster, Germany.
Angew Chem Int Ed Engl. 2018 Apr 23;57(18):5161-5165. doi: 10.1002/anie.201713240. Epub 2018 Mar 24.
A procedure for the synthesis of three-dimensional hexakisimidazolium cage compounds has been developed. The reaction of the trigonal trisimidazolium salts H L(PF ) , decorated with three N-olefinic pendants, and silver oxide yielded trinuclear trisilver(I) hexacarbene molecular cylinders of the type [Ag L ] with the olefinic pendants from the two different tricarbene ligands arranged in three pairs. Subsequent UV irradiation gave three cyclobutane links between the two tris-NHC ligands in three [2+2] cycloaddition reactions, thereby generating a three-dimensional hexakis-NHC ligand. Removal of the metal ions resulted in the formation of three-dimensional hexakisimidazolium cages with a large internal cavity.
已开发出一种合成三维六咪唑鎓笼状化合物的方法。带有三个N - 烯烃侧链的三角三咪唑鎓盐H L(PF ) 与氧化银反应，生成了[Ag L ]型的三核三银(I)六卡宾分子圆柱体，其中来自两个不同三卡宾配体的烯烃侧链以三对排列。随后的紫外线照射在三个[2 + 2]环加成反应中使两个三 - NHC配体之间形成了三个环丁烷连接，从而生成了三维六 - NHC配体。去除金属离子导致形成具有大内腔的三维六咪唑鎓笼。
