Abstract
In order to study their photographic properties, starting from the corresponding aromatic diamines the first representatives of a number of dipyrazolidonylarylenes have been synthesized: di[4-(pyrazolid-3-on-1-yl) phenyl] oxide and 1,2-di[4-(pyrazolid-3-on-1-yl)phenyl]ethane.
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For part IV, see [14].
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Zhurin, R.B., Zolin, V.M. & Ivina, V.N. Some pyrazolid-3-one derivatives. Chem Heterocycl Compd 5, 623–625 (1969). https://doi.org/10.1007/BF00957374
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DOI: https://doi.org/10.1007/BF00957374