Abstract:We have serendipitously discovered a combination of reaction partners that function as a “chiral interlocking auxiliary” to both orientate a macrocycle and, effectively, load it onto a new axle. We demonstrate the potential of this finding through the synthesis of a number of targets in high enantiopurity, without separation of stereoisomers, including examples whose axles lack any functional groups that would allow their direct synthesis by other means, so called “impossible” rotaxanes. Intriguingly, by varyi… Show more
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