296771-74-9

Upstream product

• 85-52-9 2-Benzoylbenzoic acid 
• 1966-16-1 5-chloro-2-nitrophenylhydrazine 
• 110-89-4 piperidine 
• 329922-57-8 2-(2-nitro-5-chlorophenyl)-4-phenyl-1,2-dihydrophthalazin-1(2H)-one 

Downstream Products

• 676562-72-4 2-(2-amino-5-piperidin-1-yl-phenyl)-4-phenyl-2H-phthalazin-1-one 

Relevant academic research and scientific papers

Efficient route to benzo[4,5]imidazo[2,1-a]phthalazines

Benzo[4,5]imidazo[2,1-a]phthalazines have been obtained from various o-nitrophenylhydrazines through different 2-(2-nitrophenyl)-1,2-dihydro-1-phthalazinones as intermediates using an elaborated advanced procedure. An activated chlorine atom in 2-nitrophe

Synthesis of benzo[4,5]imidazo[2,1-a]phthalazines

5,9-Disubstituted benzo[4,5]imidazo[2,1-a]phthalazines are synthesized efficiently from acylbenzoic acids and 2-nitro-5-chlorophenylhydrazine. Nucleophilic substitution in phthalazinones gave a variety of the title compounds after reduction and cyclizatio