792945-65-4

Upstream product

• 85-56-3 2-(4-chlorobenzoyl)benzoic acid 
• 1966-16-1 5-chloro-2-nitrophenylhydrazine 

Downstream Products

• 591735-71-6 2-(2-nitro-5-pyrrolidinophenyl)-4-(4-chlorophenyl)-1,2-dihydro-1-phthalazinone 
• 591735-73-8 2-(2-nitro-5-piperazinophenyl)-4-(4-chlorophenyl)-1,2-dihydro-1-phthalazinone 
• 847468-20-6 2-(2-amino-5-chlorophenyl)-4-(4-chlorophenyl)-1,2-dihydro-1-phthalazinone 
• 591726-39-5 2-(2-nitro-5-piperidinophenyl)-4-(4-chlorophenyl)-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