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Molecules 2010, 15(3), 1442-1452; doi:10.3390/molecules15031442
Article

Synthesis and Conformational Study of a Novel Macrocyclic Chiral(Salen) ligand and its Uranyl and Mn Complexes

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Received: 21 December 2009 / Revised: 20 January 2010 / Accepted: 2 March 2010 / Published: 9 March 2010
(This article belongs to the Special Issue Asymmetric Synthesis)
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Abstract

A novel chiral macrocyclic ligand incorporating a chiral salen moiety into a framework containing two biphenyl units was synthesized. Structural properties and conformational aspects of the free ligand and an UO2 complex were studied by using NMR spectroscopy in solution and MM calculations. The Mn(III) complex was tested as catalyst in enantioselective oxidation of prochiral unfunctionalized olefins to the corresponding optically active epoxides under very mild conditions.
Keywords: macrocyclic chiral ligand; salen; enantioselectivity; epoxidation macrocyclic chiral ligand; salen; enantioselectivity; epoxidation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Amato, M.E.; Ballistreri, F.P.; Pappalardo, A.; Tomaselli, G.A.; Toscano, R.M. Synthesis and Conformational Study of a Novel Macrocyclic Chiral(Salen) ligand and its Uranyl and Mn Complexes. Molecules 2010, 15, 1442-1452.

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