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Heterobifunctional Rotaxanes for Asymmetric Catalysis
Authors:Noël Pairault  Hui Zhu  Dennis Jansen  Alexander Huber  Constantin G Daniliuc  Stefan Grimme  Jochen Niemeyer
Abstract:Heterobifunctional rotaxanes serve as efficient catalysts for the addition of malonates to Michael acceptors. We report a series of four different heterobifunctional rotaxanes, featuring an amine‐based thread and a chiral 1,1′‐binaphthyl‐phosphoric‐acid‐based macrocycle. High‐level DFT calculations provided mechanistic insights and enabled rational catalyst improvements, leading to interlocked catalysts that surpass their non‐interlocked counterparts in terms of reaction rates and stereoselectivities.
Keywords:asymmetric catalysis  DFT  mechanically interlocked molecules  rotaxanes  supramolecular chemistry
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