Unique asymmetric catalysis of cis-? metal complexes of salen and its related Schiff-base ligands
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- 17 August 2004
- journal article
- review article
- Published by Royal Society of Chemistry (RSC) in Chemical Society Reviews
- Vol. 33 (7) , 437-444
- https://doi.org/10.1039/b304133f
Abstract
Complexes of chiral salen and its related tetradentate Schiff-base ligands adopt three different configurations, trans, cis-α and cis-β. Of these complexes, trans-complexes have been widely used as catalysts for various asymmetric reactions. However, recent studies have disclosed that cis-β metallosalen and its related complexes show unique asymmetric catalyses that cannot be achieved by trans-metallosalen complexes. The present article summarizes generation of cis-β metallosalen and its related complexes, their structural features, and their application to asymmetric syntheses.Keywords
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