74720-30-2

Upstream product

• 3027-05-2 N,N'-diacetylpiperazin-2,5-dione 
• 123-11-5 4-methoxy-benzaldehyde 
• 53736-74-6 (3z)-1-Acetyl-3-(4-methoxybenzylidene)-2,5-piperazinedione 

Downstream Products

• 74720-31-3 (E)-3-(p-anisilidene)-2,5-piperazinedione 
• 74720-36-8 (E)-3-(p)-anisilidene-(Z)-6-benzylidene-2,5-piperazinedione 
• 117531-70-1 3-[1-(4-Methoxy-phenyl)-meth-(E)-ylidene]-6-[2-oxo-1,2-dihydro-indol-(3Z)-ylidene]-piperazine-2,5-dione 

Relevant academic research and scientific papers

Conjugated Systems Derived from Piperazine-2,5-dione

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.

α,β-Unsaturated Carboxylic Acid Derivatives. Part 18. Syntheses of Geometric Isomers of 3,6-Dibenzylidene- and 3-p-Anisylidene-6-benzylidene-2,5-piperazinediones

Naturally occuring 3,6-dibenzylidene- and 3-p-anisylidene-6-benzylidene-2,5-piperazinediones and their geometric isomers were synthesized by the condensation of 1-acetyl or 1,4-diacetyl derivative of (E)- and (Z)-benzylidene- or p-anisylidene-2,5-piperazinediones with an appropriate aldehyde.The configuration of these compounds were assigned on the basis of the spectroscopic analyses, and those of natural products were determined to be (3Z,6Z).