1,1,n,n-Tetramethyl[n](2,11)teropyrenophanes (n = 7–9): a series of armchair SWCNT segments
作者:Bradley L. Merner、Kiran Sagar Unikela、Louise N. Dawe、David W. Thompson、Graham J. Bodwell
DOI:10.1039/c3cc43268h
日期:——
A new iterative bridge formation strategy has been employed in the synthesis of a series of [n](2,11)teropyrenophanes (n = 7â9). The generation of the nonplanar teropyrene system, which is calculated to be bent through 178.7° for the smallest homologue (n = 7), is accomplished using a VID reaction of a cyclophanemonoene precursor for the first time.
在合成一系列[n](2,11)teropyrenophanes (n = 7â9) 的过程中,我们采用了一种新的迭代桥形成策略。根据计算,最小同系物(n = 7)的非平面芘系统弯曲度为 178.7°,该非平面芘系统的生成首次使用了环番木烯烃前体的 VID 反应。
Gram‐Scale Synthesis of the 1,1,
<i>n</i>
,
<i>n</i>
‐Tetramethyl[
<i>n</i>
](2,11)teropyrenophanes
作者:Kiran Sagar Unikela、Parisa Ghods Ghasemabadi、Václav Houska、Louise N. Dawe、Yuming Zhao、Graham J. Bodwell
DOI:10.1002/chem.202003828
日期:2021.1.4
A gram‐scalesynthesis of a series of 1,1,n,n‐tetramethyl[n](2,11)teropyrenophanes (n=7–9) has been accomplished as well as the first synthesis of the next higher homologue 1,1,10,10‐tetramethyl[10](2,11)teropyrenophane. The scale‐up of the original small‐scalesynthesis required the development of several heavily modified synthetic methods, including a chlorination/Friedel–Crafts alkylation protocol
一系列1,1,n,n-四甲基[ n ](2,11)萜品庚烯(n =7–9)以及下一个更高的同系物1,1,10,10-四甲基[10](2,11)邻苯二甲醛的首次合成已经完成。原始小规模合成的放大规模要求开发几种经过重大改进的合成方法,包括氯化/弗里德尔-克来福特烷基化方案和碘化/ Wurtz偶联方案,它们分别在25-30 g和30-60上进行g鳞片。在合成途径结束时,为关键的萜烯形成环脱氢反应开发了两套独立的条件,一种用于两个不太紧张的同类物的酸促进方法,另一个用于两个紧张的同系物的无酸方法。
New Strategies for Synthesizing Short Sections of Carbon Nanotubes
作者:Brian D. Steinberg、Lawrence T. Scott
DOI:10.1002/anie.200901025
日期:2009.7.13
Harbingers of single‐chirality nanotubes: Lessons learned from recent syntheses of cyclophanes with record numbers of benzene rings embedded in the macrocycle (see picture) have brought chemists closer to the goal of obtaining structurally uniform single‐walled carbonnanotubes made‐to‐order. The syntheses of the cyclophanes rely on the aromatization of less‐strained dihydroaromatic ring systems in
The Development of Synthetic Routes to 1,1,<i>n</i>,<i>n</i>-Tetramethyl[<i>n</i>](2,11)teropyrenophanes
作者:Kiran Sagar Unikela、Bradley L. Merner、Parisa Ghods Ghasemabadi、C. Chad Warford、Christopher S. Qiu、Louise N. Dawe、Yuming Zhao、Graham J. Bodwell
DOI:10.1002/ejoc.201900707
日期:2019.7.31
BIG BEND chimes in – this is not second hand news! Every minute detail of the synthesis of a striking series of 1,1,n,n‐tetramethyl[n](2,11)teropyrenophanes (n=7–9) is described. The end‐to‐end bend in the teropyrene system clocks in at as much as 177.9°.
大弯曲声响起–这不是二手新闻!详细介绍了惊人的1,1, n, n-四甲基[ n ](2,11)萜烯基庚烯( n = 7–9)系列的合成。萜品system体系的端对端弯曲时脉可达177.9°。
Conformational study of the higher [n.n]paracylophanes: evaluation as potential hosts for molecular halogens and benzenes
作者:Mark Mascal、Jean-Luc Kerdelhué、Andrei S. Batsanov、Michael J. Begley
DOI:10.1039/p19960001141
日期:——
A fundamental study of the conformations of [7.7]-, [8.8]-, [9.9]-, [11.11]- and octamethyl[8.8]-paracyclophanes in the solid state shows that the [odd,odd] members of the series possess parallel, symmetrically disposed benzene rings. A new genre of inclusion phenomenon based on donor-halogen EDA interactions is also defined and the potential of cyclophanes to act as hosts both in this capacity and to benzenes is discussed.