41932-99-4

Usage

InChI:InChI=1/C11H11ClN4O/c1-15(13)9-7-14-16(11(17)10(9)12)8-5-3-2-4-6-8/h2-7H,13H2,1H3

Upstream product

• 1698-53-9 4,5-dichloro-1-phenylpyridazin-6-one 
• 60-34-4 methylhydrazine 

Downstream Products

• 98767-52-3 1-Methyl-5-phenyl-1,5-dihydro-pyrazolo[3,4-d]pyridazin-4-one 
• 98767-55-6 Acetic acid N'-methyl-N'-(6-oxo-1-phenyl-1,6-dihydro-pyridazin-4-yl)-hydrazide 
• 98767-57-8 2-(1-Chloro-vinyl)-5-phenyl-2,5-dihydro-pyrazolo[3,4-d]pyridazin-4-one 
• 98767-49-8 5-(N-Methyl-hydrazino)-2-phenyl-2H-pyridazin-3-one 
• 143703-01-9 3-(2,2-Dimethoxy-ethylamino)-1-methyl-6-phenyl-1H,6H-pyridazino[4,5-e][1,3,4]thiadiazin-5-one 

Relevant academic research and scientific papers

Synthesis of Pyrazolopyridazines from 5-(1-Methylhydrazino)-pyridazines by Means of the Vilsmeier-Haack Reaction

Reaction of 2-substituted 5-(1-methylhydrazino)-3(2H)-pyridazinones (2a-d) with dimethylformamide-phosphorus oxychloride afforded 5-substituted 1,5-dihydro-1-methyl-4H-pyrazolopyridazin-4-ones (3a-d) in good yields.However, concurrent formation of

5-Hydrazinopyridazin-3(2H)-ones

Substituted 5-hydrazinopyridazin-3(2H)-ones, e.g., 4-chloro-2-(3-trifluoromethylphenyl)-5-(1-methylhydrazino)-pyridazin-3(2H)-one or 4-chloro-2-(2-fluoro-5-trifluoromethylphenyl)-5-(1-methylhydrazino)-pyridazin-3(2H)-one, are prepared by treating halogena