Beilstein J. Org. Chem.2012,8, 234–245, doi:10.3762/bjoc.8.24
][32]. The mechanical bond appears particularly suited for this goal, because it connects the axle and wheel strongly, but leaves freedom for the relative movement of the two components. Pseudorotaxanes are the precursors for both rotaxane syntheses by stoppering reactions or catenanes by
this case to acids and bases, which induce motion of the wheel and axle components relative to each other.
Tetralactam macrocycles (TLMs) [65][66] have widely been used in the synthesis of amide catenanes and rotaxanes [85][86][87][88][89][90][91][92] and represent excellent hosts for dicarbonyl
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Graphical Abstract
Figure 1:
Hunter/Vögtle-type tetralactam macrocycle 1 bearing an iodo substituent at one of the isophthaloyl ...
Beilstein J. Org. Chem.2010,6, No. 32, doi:10.3762/bjoc.6.32
[58][59][60][61][62][63][64], catenanes [58][65][66][67][68], spherands [69], cryptophanes [70][71][72] as well as switching devices [73][74][75], self assembly systems [76][77][78][79][80][81][82][83][84] or carcerands [85][86][87] because these structures are less frequently used for organic
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Graphical Abstract
Figure 1:
Biologically important amines and quaternary ammonium salts: histamine (1), dopamine (2) and acetyl...