7670-65-7Relevant articles and documents
Conjugated Systems Derived from Piperazine-2,5-dione
Katritzky, Alan R.,Fan, Wei-Qiang,Szajda, Maria,Li, Qiao-Ling,Caster, Kenneth C.
, p. 591 - 597 (2007/10/02)
The preparation of mono- and of symmetrical and unsymmetrical bis-ylidene derivatives of piperazine-2,5-dione is described.The uv-visible absorption of the products is correlated with acceptor/donor character of the substituents.