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Determination of Absolute Configuration of (π‐Allyl)Palladium Complexes by NMR Spectroscopy and Stereoselective Complexation
Author(s) -
Gogoll Adolf,
Johansson Charlotte,
Axén Andreas,
Grennberg Helena
Publication year - 2001
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/1521-3765(20010119)7:2<396::aid-chem396>3.0.co;2-z
Subject(s) - chemistry , palladium , ligand (biochemistry) , absolute configuration , chelation , stereoselectivity , selectivity , nuclear magnetic resonance spectroscopy , stereochemistry , nmr spectra database , proton nmr , spectral line , organic chemistry , catalysis , biochemistry , receptor , physics , astronomy
Abstract The chiral chelating ligand N , N ′‐bis(phenylethyl)bispidine ( 1 ) forms a rigid cavity which accommodates (π‐allyl)palladium species with high selectivity. In the resulting complex, the absolute configuration of the π‐allyl ligand can be determined by the detection in NMR spectra of a few unambiguous interligand NOEs. Dynamic processes involving the π‐allyl ligand can be investigated. Depending on the analytical target, ligand ( S , S )‐ 1 or ( R , R )‐ 1 may be used.