134126-92-4

Upstream product

• 125179-43-3 5-(4-Chloro-phenyl)-2-{[2-oxo-2-phenyl-eth-(E)-ylidene]-hydrazono}-furan-3-one 

Downstream Products

• 134126-94-6 2-(1-hydroxy-1-methylethyl)hydrazono-5-(4-chlorophenyl)-2,3-dihydro-3-furanone 
• 134126-96-8 (Z)-4-(4-Chloro-phenyl)-2-hydroxy-4-oxo-but-2-enoic acid [3-oxo-5-p-tolyl-3H-furan-(2E)-ylidene]-hydrazide 
• 125179-73-9 6-(4-chlorophenyl)-4-hydroxy-2,3-dihydropyridazin-3-one 
• 134126-93-5 2-(4-methoxyphenyl)hydroxymethylhydrazono-5-(4-chlorophenyl)-2,3-dihydro-3-furanone 
• 134126-99-1 2-(4-methylbenzoyl)acetylhydrazono-5-(4-chlorophenyl)-2,3-dihydro-3-furanone 

Relevant academic research and scientific papers

FIVE-MEMBERED 2,3-DIOXOHETEROCYCLES XVII. SYNTHESIS AND PROPERTIES OF 2-HYDRAZONO-5-ARYL-2,3-DIHYDRO-3-FURANONES

The reaction of 2-benzoylmethylenehydrazono-5-aryl-2,3-dihydro-3-furanones with o-phenylenediamine leads to 2-hydrazono-5-aryl-2,3-dihydro-3-furanones.The latter react with aldehydes and ketones with the formation of substituted 2-hydroxymethylhydrazono-5-aryl-2,3-dihydro-3-furanones, are acylated by 5-aryl-2,3-dihydrofuran-2,3-diones forming 2-aroylpyruvoylhydrazono-5-aryl-2,3-dihydro-3-furanones, and undergo recyclization in an acidic medium to 6-aryl-4-hydroxy-2,3-dihydropyridazin-3-ones.