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Nickel-promoted Reductive Cleavage of Nitrogen-nitrogen and Nitrogenoxygen Bonds Mediated by Lithium and a Catalytic Amount of an Arene or Polymer Supported Arene
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1  Departamento de Quimica Organica, Universidad de Alicante, E-03080 Alicante, Spain

Abstract: The NiCl2·2H2O/Li/DTBB (10 mol%) combination allows the reduction of aromatic hydrazines 1 (to amines), azo compounds 2 (to primary amines), azoxy compounds 3 (to azo compounds or to primary amines, depending on the reaction conditions) or amine N-oxides 4 (to tertiary amines), under mild reaction conditions (THF, room temperature). The reaction can be alternatively carried out in the presence of a polymer supported arene instead of DTBB as electron carrier.
Keywords: nickel, arene- and polymer supported arene, lithium, reduction, nitrogen containing compounds.

 
 
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