150651-40-4

Upstream product

• 4414-88-4 1H-benzimidazol-2-acetonitrile 
• 1867-38-5 4-chlorobenzylidenemalonodinitrile 

Downstream Products

• 709030-25-1 N'-[3-(4-chloro-phenyl)-2,4-dicyano-benzo[4,5]imidazo[1,2-a]pyridin-1-yl]-N,N-dimethyl-formamidine 
• 709030-29-5 N-[3-(4-chloro-phenyl)-2,4-dicyano-benzo[4,5]imidazo[1,2-a]pyridin-1-yl]-formimidic acid ethyl ester 
• 709030-41-1 C₂₁H₁₀ClN₇O 
• 709030-33-1 3-amino-5-(4-chloro-phenyl)-4-imino-3,4-dihydro-1,3,7,11b-tetraaza-benzo[c]fluorene-6-carbonitrile 

Relevant academic research and scientific papers

Synthesis of Polyazaheterocycles by Michael Addition of CH Acids to α,β-Unsaturated Nitriles. Synthesis of Pyridobenzimidazole and Pyrimidopyridobenzimidazole Derivatives

Addition of 1H-benzimidazole-2-carbonitrile (1) to arylidenemalononitrile (2) gave 1-amino-3-aryl pyridobenzimidazole-2,4-dicarbonitrile (3), 2-aryl-benzimidazole (4) and 1H-benzimidazole-2-acetonitrile, α-(arylmethylene) (5).Compounds (3) reacted with formamide yielding 4-amino-5-aryl pyrimidopyridobenzimidazole (6).