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Article Dans Une Revue Organometallics Année : 2007

Cyclometalation of Secondary Benzyl Amines by Ruthenium(II) Complexes

Résumé

The cyclometalation of chiral secondary amines through ortho-metalation of an aryl group occurred readily with [(η6-benzene)RuCl2]2 in acetonitrile. Reasonable to good yields of the expected cationic products of the form [(η6-benzene)Ru(N−C)(NCMe)](PF6), in which N−C represents the cyclometalated ligands, were obtained with bis-(R)-phenylethylamine, bis-(R)-1-naphthylethylamine, and (2R,5R)-2,5-diphenylpyrrolidine. Variable proportions of the expected four diastereoisomers were found according to NMR studies. The stereochemistry of complexes was investigated by 2D NMR in solution and by X-ray diffraction of single crystals. The (S) configuration at the metal was generally associated with a δ conformation of the metallacycle, and conversely, the (R) configuration with the λ conformation.

Dates et versions

hal-03639782 , version 1 (13-04-2022)

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Citer

Jean-Baptiste Sortais, Nicolas Pannetier, Nicolas Clément, Laurent Barloy, Claude Sirlin, et al.. Cyclometalation of Secondary Benzyl Amines by Ruthenium(II) Complexes. Organometallics, 2007, 26 (8), pp.1868-1874. ⟨10.1021/om060974l⟩. ⟨hal-03639782⟩

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