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J. Crassous et al. zeigen in ihrer Zuschrift auf S. 5896 ff., wie die cis‐trans‐Isomerie von [PtIICl2(4‐Aza[6]helicen)PPh3] durch racemische und enantiomerenreine Formen des 4‐Aza[6]helicen‐Liganden gesteuert wird.
It was serendipitously observed that cis‐[PtCl2(NCEt)PPh3] reacted differently with either racemic or enantiopure 4‐aza[6]helicene, giving respectively cis (racemic) and trans (enantiopure) [PtIICl2(4‐aza[6]helicene)PPh3] complexes. This unexpected reactivity is explained through a dynamic process (crystallization‐induced diastereoselective transformation) and enables a new aspect of reactivity in...
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