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Induction of an Enantiomeric Excess in a Calix[4]arene/Bipyridine-Based chiral copper(i) complex

✍ Scribed by Jean-Bernard Regnouf-de-Vains; Roger Lamartine; Bernard Fenet

Publisher: John Wiley and Sons
Year: 1998
Tongue: German
Weight: 491 KB
Volume: 81
Category: Article
ISSN: 0018-019X
DOI: 10.1002/hlca.19980810316

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✦ Synopsis

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 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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