Molecules (Mar 2000)

New Conjugated Systems Derived from Piperazine-2,5-dione

  • Abdullah Mohamed Asiri

DOI
https://doi.org/10.3390/50300629
Journal volume & issue
Vol. 5, no. 3
pp. 629 – 636

Abstract

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The preparation of monoarylidene and both symmetrical and unsymmetrical bisarylidene derivatives of piperazine-2,5-dione is described. The use of 1,4-diacetylpiperazine-2,5-dione make it possible to prepare unsymmetrical bisarylidenes. The introduction of a dicyanomethylene moiety into the para position of one of the arylidene groups gave a remarkable deepening in the colour of the resulting compounds 11 and 16.

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