Isomerism of (π-1,3-dimethylallyl)(phosphinooxazoline)Pd complexes: a comparison between experiment and theory
(π-Allyl)Pd complexes of chiral phosphinooxazoline (PHOX) ligands, derived from α-amino acids, are widely used in Pd-catalyzed asymmetric allylic substitutions. Conformational analyses of two (π-1,3-dimethylallyl)(phosphinooxazoline)Pd complexes were carried out using hybrid QM/MM computations and a self-consistent reaction field (SCRF) solvation model. The computed isomer ratios and geometries are in good agreement with experimental NMR and X-ray data.
Section snippets
Supplementary material
Crystallographic data for the structural analysis have been deposited with the Cambridge Crystallographic Data Centre, CCDC nos. 155381 and 155382 for compounds [(π-1,3-dimethylallyl)(1)Pd]ClO4 and[(π-1,3-dimethylallyl)(2)Pd]ClO4, respectively. Copies of this information may be obtained free of charge from The Director, CCDC, 12 Union Road, Cambridge CB2 1EZ, UK (Fax: +44-1223-336033; e-mail: [email protected] or www: http://www.ccdc.cam.ac.uk).
Acknowledgements
This work was supported by the Deutsche Forschungsgemeinschaft (SFB 247 and DFG-Habilitationsstipendium for B.G.) and the Fonds der Chemischen Industrie.
References (15)
J. Organomet. Chem.
(1999)- Recent reviews: (a) B.M. Trost, C. Lee, in: I. Ojima (Ed.), Catalytic Asymmetric Synthesis, 2nd ed., Wiley–VCH, New...
- et al.
Acc. Chem. Res.
(2000) - et al.
Chem. Eur. J.
(2001) - et al.
J. Organomet. Chem.
(1997) - et al.
J. Org. Chem.
(2000)et al.J. Org. Chem.
(2000)et al.Eur. J. Org. Chem.
(2000)(d)B. Goldfuss, M. Steigelmann, F. Rominger, Angew. Chem. 112 (2000) 4299; Angew. Chem. Int. Ed. Engl. 39 (2000)... Chem. Rev.
(2000)et al.Int. J. Quantum Chem.
(1999)et al.Organometallics
(1997)et al.Organometallics
(1999)et al.Organometallics
(1999)et al.Organometallics
(2000)
Cited by (17)
Homo- vs. heterometallic organoaluminum fencholates: Structures and selectivities
2008, Journal of Organometallic ChemistryElectronic differentiations in palladium-catalyzed allylic substitutions
2006, Journal of Organometallic ChemistryNew cationic palladium (II) and rhodium (I) complexes of [Ph <inf>2</inf>PCH<inf>2</inf>C(Ph)=N(2,6-Me<inf>2</inf>C<inf>6</inf>H <inf>3</inf>)]
2005, Journal of Organometallic ChemistryInsights into the ruthenium-catalysed selective reduction of cardanol derivatives via transfer hydrogenation: a density functional theory study
2023, Catalysis Science and TechnologyMechanisms and Beyond: Elucidation of Fluxional Dynamics by Exchange NMR Spectroscopy
2019, Chemistry - A European JournalLigand's electronegativity controls the sense of enantioselectivity in BIFOP-X palladium-catalyzed allylic alkylations
2019, New Journal of Chemistry