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ChemInform Abstract: Efficient Solvent Free Deoximation and Dehydrazonation with HIO3 in the Presence of Wet SiO2.

✍ Scribed by F. Shirini; M. A. Zolfigol; M. R. Azadbar

Publisher: John Wiley and Sons
Year: 2010
Weight: 29 KB
Volume: 33
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.200226081

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## Abstract magnified image A combination of methanesulfonic acid and sodium nitrite in the presence of wet SiO~2~ was used as an effective oxidizing agent for the oxidation of 1,4‐dihydropyridines to the corresponding pyridine derivatives under mild and heterogeneous conditions in excellent yield