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Trans-Bis-[(-)ephedrinate]-palladiumII Complex: Synthesis, molecular modeling and use as catalyst
S. Bouquillon, S. Humbel, U. Létinois-Halbes,F. Hénin, and J. Muzart,
J. Organomet. Chem. 2003, 687, 377-383.
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The reaction between palladium acetate, (–)-ephedrine and potassium acetate led to bis-chelate complex Pd[OCH(Ph)NH(Me)]2
whose the trans -structure is proven from calculations. The use of this complex to catalyze either the 1,4-hydrogenation of (E)-2-
benzyliden-1-tetralone or Heck reaction of phenyl iodide with 3-methyl-3-buten-2-ol led to a low enantiomeric excess.
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Further readings & informations
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This work was done in a collaboration with Dr J. Muzart and Pr F. Hénin, UMR 6519, Reims. |
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