"Magic rod" rotaxanes: the hydrogen bond-directed synthesis of molecular shuttles under thermodynamic control.
نویسندگان
چکیده
[reaction: see text] Peptide [2]- and [3]rotaxanes are assembled in high yields under thermodynamic control using hydrogen bonding interactions and reversible cross olefin metathesis.
منابع مشابه
Kinetic and thermodynamic approaches for the efficient formation of mechanical bonds.
Among the growing collection of molecular systems under consideration for nanoscale device applications, mechanically interlocked compounds derived from electrochemically switchable bistable [2]rotaxanes and [2]catenanes show great promise. These systems demonstrate dynamic, relative movements between their components, such as shuttling and circumrotation, enabling them to serve as stimuli-resp...
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In this article, we report on the efficient synthesis of well defined, homogeneous [n]rotaxanes (n up to 11) by a template-directed thermodynamic clipping approach. By employing dynamic covalent chemistry in the form of reversible imine bond formation, [n]rotaxanes with dialkylammonium ion (-CH(2)NH(2)(+)CH(2)-) recognition sites, encircled by [24]crown-8 rings, were prepared by a thermodynamic...
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The synthesis and characterization of a series of hybrid organic-inorganic [2]rotaxanes is described. The ring components are heterometallic octa- ([Cr(7)MF(8)(O(2)C(t)Bu)(16)]; M = Co, Ni, Fe, Mn, Cu, Zn, and Cd) nuclear cages in which the metal centers are bridged by fluoride and pivalate ((t)BuCO(2)(-)) anions; the thread components feature dialkylammonium units that template the formation o...
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عنوان ژورنال:
- Organic letters
دوره 5 11 شماره
صفحات -
تاریخ انتشار 2003