Summary
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1.
A new method has been found for the preparation of aryl nitrolic acids, namely, the action of N2O4 on the asalts of arylnitromethanes.
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2.
Aryl nitrolic acids exist in two forms.
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3.
The reaction of m-nitrobenzonitrolic acid with N2O4 to give a trinitromethyl derivative, which we have discovered earlier, is now extended to p-nitro- and p-chlorobenzonitrolic acids.
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4.
A one-stage method is proposed for the synthesis of aryltrinitromethanes from aryl aldoximes.
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Khmel'nitskii, L.I., Novikov, S.S. & Lebede, O.V. Reaction of N2O4 with organic compounds. Russ Chem Bull 9, 1873–1877 (1960). https://doi.org/10.1007/BF00907749
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DOI: https://doi.org/10.1007/BF00907749