Efficient Potassium-Ion-Templated Synthesis and Controlled Destruction of [2]Rotaxanes Based on Cascade Complexes
作者:Tao Han、Chuan-Feng Chen
DOI:10.1021/jo801522f
日期:2008.10.3
The triptycene-based macrotricyclic host can form pseudorotaxane-like cascade complexes with anthraquinone and its tetra-azide terminally functionalized derivative in the presence of potassium ions, which subsequently resulted in the synthesis of three novel potassium-ion-templated [2]rotaxanes 10-12 in high yields by the "threading followed by stoppering" approach. Since the potassium ions act not
Tetrapodal Molecular Switches and Motors: Synthesis and Photochemistry
作者:Kuang-Yen Chen、Sander J. Wezenberg、Gregory T. Carroll、Gábor London、Jos C. M. Kistemaker、Thomas C. Pijper、Ben L. Feringa
DOI:10.1021/jo501190f
日期:2014.8.1
The design, synthesis, and dynamic behavior of a series of novel tetrapodal molecular switches and motors containing common functional groups for attachment to various inorganic and organic surfaces are presented. Using a Diels–Alder reaction, an anthracene unit with four functionalized alkyl substituents (“legs”) was coupled to maleimide-functionalized molecular switches or motors under ambient conditions