125849-49-2

Upstream product

• 288-32-4 1H-imidazole 
• 3876-05-9 3,4-dichloro-1-phenyl-1H-pyrrole-2,5-dione 
• 64-17-5 ethanol 
• 941-69-5 N-phenyl-maleimide 

Relevant academic research and scientific papers

Some synthetic applications of 2,3-dichloro-N-phenylmaleimide: A novel synthesis of 2-phenylpyrrolo[3,4-b]quinoxaline-1,3-diones. I

2,3-Dichloro-N-phenylmaleimide 2 undergoes nucleophilic substitution reactions by a variety of nucleophiles giving either monosubstituted 5 or disubstituted 3 products. Treatment of 5 with sodium azide at room temperature results in cyclization to the corresponding 2-phenylpyrrolo[3,4- b]quinoxaline-1,3-diones 6, while at higher temperatures 5 is reduced to the 2-amino-amino-N-phenylmaleimides 7.

Novel Chromophoric Heterocycles Based on Maleimide and Naphthoquinone

1-Phenyl-3,4-dichloromaleimide, 1-n-propyl-3-bromomaleimide, and 2,3-dichloro-1,4-naphthoquinone have been condensed with various mono- and bis-nucleophiles to yield a range of novel dyes and pigments.Their visible absorption spectra are discussed.