Abstract
Abstract Considerable attention has been focused onto the fixation of molecular nitrogen in recent years.1 As the in vivo process is catalyzed by the enzyme nitrogenase which consists of two protein components: an Fe-protein and an Fe-Mo-protein, the redox reaction must occur in the immediate vicinities of the metal cluster and is likely preceded by coordination of N2 with one of the molybdenum atoms. Our interest in the organic prototype of the reaction, namely the saturation and cleavage of NN multiple bonds, has resulted in a report of reducing azobenzenes to anilines by the Pd-catalyzed hydrogen transfer from cyclohexene.2 We now wish to describe the use of Mo(II) species in carboxylic acids to effect the conversion of azobenzene to anilides.
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