Cubane Arrives on the Cucurbituril Scene,Organic Letters

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Cubane Arrives on the Cucurbituril Scene
Organic Letters ( IF 4.9 ) Pub Date : 2017-05-03 00:00:00 , DOI: 10.1021/acs.orglett.7b01029
Kristýna Jelínková ₁ , Heda Surmová ₁ , Alena Matelová ₁ , Michal Rouchal ₁ , Zdeňka Prucková ₁ , Lenka Dastychová ₁ , Marek Nečas ₂ , Robert Vícha ₁

Affiliation

Cubane, an intriguing chemical curiosity first studied in the early 1960s, has become a valuable structural motif and has recently been involved in the structures of a great number of prospective compounds. The first dicationic supramolecular guest 5 is prepared and derived from a 1,4-disubstituted cubane moiety, and its binding behavior toward cucurbit[n]urils (CBn) and cyclodextrins (CD) is studied. The bisimidazolium salt 5 forms 1:1 inclusion complexes with CB7, CB8, and β-CD with the respective association constants (6.7 ± 0.5) × 10¹¹ M^–1, (1.5 ± 0.2) × 10⁹ M^–1, and <10² M^–1 in water. The solid-state structures of the 5@CB7 and 5@CB8 complexes are also reported.

中文翻译：

古巴人来到南瓜属现场

Cubane是一种有趣的化学好奇心，它在1960年代初期首次被研究，已经成为一种有价值的结构基序，并且最近涉及许多潜在化合物的结构。制备第一客体超分子客体5并衍生自1,4-二取代古巴部分，并研究其与葫芦巴[ n ] urils（CB n）和环糊精（CD）的结合行为。双咪唑鎓盐5与CB7，CB8和β-CD形成1：1包合物，其缔合常数分别为（6.7±0.5）×10 ¹¹ M ^–1，（1.5±0.2）×10 ⁹ M ^–1和< 10 ² M ^–1在水里。还报告了5 @ CB7和5 @ CB8配合物的固态结构。

更新日期：2017-05-03

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