Induction of an Enantiomeric Excess in a Calix[4]arene/Bipyridine‐Based chiral copper(i) complex
- 1 January 1998
- journal article
- research article
- Published by Wiley in Helvetica Chimica Acta
- Vol. 81 (3-4) , 661-669
- https://doi.org/10.1002/hlca.19980810316
Abstract
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 CuI complex. Structural investigations by high‐resolution NMR studies led us to propose the left‐handed prohelical [CuI(bpy)2] substructure for the major enantiomer.Keywords
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