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Noun edit

piperazinedione (plural piperazinediones)

  1. (organic chemistry) Any of three isomeric diketones derived from piperazine
    • 2015 August 6, Masashi Yokoya et al., “Chemistry of Renieramycins. Part 14: Total Synthesis of Renieramycin I and Practical Synthesis of Cribrostatin 4 (Renieramycin H)”, in Marine Drugs[1], volume 13, →DOI:
      The piperazinedione ring of 1 1a was activated by introducing a 2-propyloxycarbonyl group to give imide 1 8 in 96% yield.