76039-46-8

Upstream product

• 6903-92-0 3-Chlor-1-phenyl-4-phenylamino-pyrrolin-2,5-dion 
• 941-69-5 N-phenyl-maleimide 
• 3876-05-9 3,4-dichloro-1-phenyl-1H-pyrrole-2,5-dione 

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.

SYNTHESE VON CHINOXALIN- UND INDOL-2,3-DICARBONSAUREIMIDEN

Quinoxaline- and indole-2,3-dicarboxylic imides 7,8 are prepared by reaction of halogenactive maleimides 1,2 with sodium azide.Further derivatives of these heterocyclic series are available by secondary reactions of the imides.