329922-57-8

Upstream product

• 85-52-9 2-Benzoylbenzoic acid 
• 1966-16-1 5-chloro-2-nitrophenylhydrazine 

Downstream Products

• 676562-72-4 2-(2-amino-5-piperidin-1-yl-phenyl)-4-phenyl-2H-phthalazin-1-one 
• 676562-73-5 2-(2-amino-5-morpholin-4-yl-phenyl)-4-phenyl-2H-phthalazin-1-one 
• 676562-71-3 2-(2-amino-5-pyrrolidin-1-yl-phenyl)-4-phenyl-2H-phthalazin-1-one 
• 296770-33-7 2-(2-amino-5-chlorophenyl)-4-phenyl-1,2-dihydro-1-phthalazinone 
• 337498-40-5 2-(2-nitro-5-morpholinophenyl)-4-phenyl-1,2-dihydro-1-phthalazinone 
• 296771-74-9 2-(2-nitro-5-piperidinophenyl)-4-phenyl-1,2-dihydro-1-phthalazinone 
• 346692-40-8 2-(2-nitro-5-pyrrolidinophenyl)-4-phenyl-1,2-dihydro-1-phthalazinone 

Relevant academic research and scientific papers

Benzo[4,5]imidazo[2,1-a]phthalazines: I. Substituted o- nitrophenylhydrazines in the synthesis of phthalazin-1(2H)-ones

Efficient cyclization procedure was developed for 2-nitro-, 2,4-dinitro-, 2-nitro-5-chloro-, and 4,5-dichloro-2-nitrophenylhydrazines with 2-acylbenzoic acids by heating the reagents in a mixture of of concentrated sulfuric acid and ethanol. A series of n

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