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Beilstein J. Org. Chem. 2019, 15, 1829–1837, doi:10.3762/bjoc.15.177
Graphical Abstract
Scheme 1: Synthesis of the axle and stopper building blocks 1 and 2.
Scheme 2: Synthesis of [n]rotaxanes 3R to 6R. Note that the position and orientation of the γ-CD are arbitrar...
Figure 1: LC–MS analysis of the reaction mixture of the [n]rotaxane synthesis in the presence of (a) 0.5; (b)...
Figure 2: Partial 1H NMR spectra (500 MHz, D2O, 298 K) of (a) 6R; (b) 5R; and (c) 4R.
Figure 3: (a) All the possible sequences of a [6]rotaxane with two CB[6] and three γ-CD interlocked on an axl...
Figure 4: Partial (a) COSY spectrum (500 MHz, D2O, 298 K) and (b) NOESY (500 MHz, D2O, 298 K) of 4R showing t...
Figure 5: Possible structures of 5R assuming no fast shuttling of the γ-CD along the axle.