139038-75-8

Upstream product

• 540-37-4 p-aminoiodobenzene 
• 120-46-7 1,3-diphenylpropanedione 
• 20893-72-5 4-iodobenzenediazonium chloride 
• 139038-66-7 2-[(4-Iodo-phenyl)-hydrazono]-1,3-diphenyl-propane-1,3-dione 
• 107-15-3 ethylenediamine 

Relevant academic research and scientific papers

Reactions of 2-Arylhydrazones of 1,2,3-Triketones with 1,2-Diaminoethane. I. Synthesis and Spectral Characterization of 6-Arylazo-2,3-dihydro-1H-1,4-diazepines and 3,10-Diarylazo-4,9-dimethyl-5,8-diaza-3,9-dodecadiene-2,11-diones

Reactions of 3-arylhydrazones of 2,3,4-pentanetrione (1a-1e) and 2-arylhydrazones of 1,3-diphenyl-1,2,3-propanetrione (1f-1l) with 1,2-diaminoethane have been studied.It was found, that 3-arylhydrazones of 2,3,4-pentanetrione react with 1,2-diaminoethane with formation of 6-arylazo-2,3-dihydro-1,4-diazepines (2a-2e) or the diarylazo derivatives of 4,9-dimethyl-5,8-diaza-3,9-dodecadiene-2,11-dione (3a-3e).Analogous reactions of 2-arylhydrazones of 1,3-diphenyl-1,2,3-propanetrione yielded exclusively the derivatives of dihydrodiazepine.The structure of obtained products has been elucidated on the basis of i.r., m.s. and 1H-n.m.r.spectra.