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Synthesis 1989; 1989(3): 223-224
DOI: 10.1055/s-1989-27210
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Conversion of Aldehydes into Nitriles via Oxidation of Their Dimethylhydrazones

Samy Bayomy Said* , Jacek Skarżewski, Jacek Młochowski
  • *Institute of Organic and Physical Chemistry, Technical University of Wrocław, PL-50-370 Wrocław, Poland
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Publikationsdatum:
17. September 2002 (online)

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The 3-chloroperoxybenzoic acid oxidation of dimethylhydrazones of aromatic aldehydes gives the corresponding nitriles in good yields. Two further examples of the same oxidative transformation of cinnamaldehyde and of hexanal are also given. Except for hexanal hydrazone, all other aldehyde hydrazones can also be efficiently converted into nitriles by treatment with methanolic 30 % hydrogen peroxide in the presence of catalytic amounts of selenium dioxide or, preferentially, 2-nitrobenzeneseleninic acid.