146ChemInform Abstract The imines (I) are converted to their sodium salts (II). These are then converted to the title compounds (III) by reaction with (CF3SO2)2O or with CF3SO2Cl. The group attached to the aryl moiety R of the titlecompounds (III), is, by its electronic nature, a very strong electron acceptor, which exerts the same effect on the aryl group as do two nitro groups in the ortho and para positions of the a romatic ring. Diazotization of the amine (IV) followed by treatment with PhNMe2 affords the diazo compound (V), which displays negative halochromism, i.e. the absorption maxima are shifted to greater wavelengths on going from acidic to neutral media.
Das Sulfonsäureamid (II) läßt sich mit F, in Gegenwart von KF + NaF bei ‐65°C zum N,N‐difluoramid (I), mit C12 in wäßrigem NaOH bei ‐10°C zum N,N‐Dichloramid (IID oxidieren.
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