Introduction of the non‐complexing chiral ( S )‐2‐methylbutoxy substituent close to the complexing site of a bis[(bipyridinyl)methoxy]calixarene podand resulted in the induction of an enantiomeric excess of ca. 30 % in the corresponding chiral Cu I complex. Structural investigations by high‐resolution NMR studies led us to propose the left‐handed prohelical [Cu I (bpy) 2 ] substructure for the major enantiomer.
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Regnouf‐de‐Vains et al. (1998) studied this question.
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