90455-75-7

Upstream product

• 135549-33-6 4-Benzoyl-1-(4-chloro-phenyl)-5-methylsulfanyl-1H-pyrrole-2,3-dione 
• 76369-26-1 (Z)-3-(4-Chloro-phenylamino)-3-methylsulfanyl-1-phenyl-propenone 

Downstream Products

• 135549-51-8 [1-(4-Chloro-phenyl)-2-hydroxy-1H-pyrrolo[2,3-b]quinoxalin-3-yl]-phenyl-methanone 

Relevant academic research and scientific papers

Cyclocondensation of alpha-oxoketene N,S-acetals with oxalyl chloride: A facile route to 3-aroyl-2-(methylthio/hydroxy/amino)-1-substituted pyrrole-4,5-diones.

Cyclocondensation of α-oxoketene N,S-acetals (1) with oxalyl chloride affords novel substituted 3-aroyl-2-methylthio-1-substituted pyrrole-4,5-diones (2), which are easily hydrolyzed to the corresponding 2-hydroxy derivatives 3 or reacted with aryl/benzyl