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31.21.1.46 Method 46: Substitution of Hydrogen Using Dinitrogen Pentoxide and Sulfur Trioxide

DOI: 10.1055/sos-SD-031-01277

Aitken, K. M.; Aitken, R. A.Science of Synthesis, (2007311246.

Dinitrogen pentoxide reacts with gaseous sulfur trioxide to give a crystalline adduct of composition O2N(OSO2)4ONO2. This adduct reacts with benzene, giving nitrobenzene as a minor product and benzenesulfonic acid as the major product. With nitrobenzene as starting material, the reagent gives 1,3-dinitrobenzene as the main product.[‌253‌]

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