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. 2017 Nov 30;24(13):3101–3112. doi: 10.1002/chem.201704149

Figure 21.

Figure 21

Takata's chiral rotaxanes for asymmetric benzoin condensations: a) example of one of the chiral rotaxanes studied, and b) example of benzoin condensation reaction where rotaxane (R)‐35 +Cl acted as a catalyst.