55991-68-9

Basic information

• Product Name: 5-P-TOLYLFURAN-2,3-DIONE
• Synonyms: 5-P-TOLYLFURAN-2,3-DIONE
• CAS NO: 55991-68-9
• Molecular Formula: C₁₁H₈O₃
• Molecular Weight: 188.18
• Mol File: 55991-68-9.mol
• Article Data: 6

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 5-P-TOLYLFURAN-2,3-DIONE(CAS DataBase Reference)
• NIST Chemistry Reference: 5-P-TOLYLFURAN-2,3-DIONE(55991-68-9)
• EPA Substance Registry System: 5-P-TOLYLFURAN-2,3-DIONE(55991-68-9)

Safety Data

• Hazardous Substances Data: 55991-68-9(Hazardous Substances Data)

Upstream product

• 122-00-9 para-methylacetophenone 
• 766-97-2 4-n-methylphenylacetylene 
• 1352131-43-1 5-hydroxy-5-(4-methylphenylethynyl)-N,N'-diphenylimidazolidine-2,4-dione 
• 103344-69-0 (Z)-2-hydroxy-4-oxo-4-p-tolyl-2-butenoic acid 
• 79-37-8 oxalyl dichloride 
• 54731-27-0 1-p-methylphenyl-1-trimethylsiloxyethene 
• 55558-81-1 4-(4-methylphenyl)-2,4-dioxobutanoic acid 

Downstream Products

• 130421-42-0 2,4-Dioxo-N-thiazol-2-yl-4-p-tolyl-butyramide 
• 77092-06-9 2-Phenyl-6-p-tolyl-[1,3]dioxin-4-one 
• 69465-99-2 3-Oxo-3-p-tolyl-thiopropionic acid S-phenyl ester 
• 85635-69-4 p-methylbenzoylpyruvanilide 
• 98157-46-1 2,2-dimethyl-6-(4-methylphenyl)-4H-1,3-dioxin-4-one 
• 97189-33-8 2-imino-3-phenyl-6-p-methylphenacylidene-2,3,5,6-tetrahydro-1,3,4-oxadiazin-5-one 
• 139266-43-6 2-[3-Oxo-5-p-tolyl-3H-furan-(2Z)-ylidene]-propionic acid methyl ester 
• 97180-86-4 [3-Oxo-5-p-tolyl-3H-furan-(2Z)-ylidene]-acetonitrile 
• 107825-34-3 5-(4-methylphenyl)-2-(phenylimino)furan-3(2H)-one 
• 121400-60-0 6-[2-Oxo-2-p-tolyl-eth-(E)-ylidene]-6,7-dihydro-4H-[1,2,5]oxadiazolo[3,4-b]pyrazin-5-one 
• 180537-71-7 N-(5-bromo-pyridin-2-yl)-2,4-dioxo-4-p-tolyl-butyramide 

Relevant articles and documents

Furan-2,3-diones as masked dipoles: synthesis of isotetronic acids and mechanistic considerations

The formal dipolar behaviour of furan-2,3-diones is illustrated by their reaction with ethyl glyoxylate under Lewis basic activation uniquely, giving access to isotetronic derivatives. The Janus-type nature of the activated species, both nucleophilic and

Reactions of acylpyruvic acids and 2,3-dihydrofuran-2,3-diones with 2,3-diaminopyridine

Acylpyruvic acids readily react with 2,3-diaminopyridine to form (Z)-3-acylmethylene-1H-3,4-dihydropyrido[2,3-b]pyrazin-2-ones. 5-Aryl-2,3-dihydrofuran-2,3-diones which can be regarded as lactones derived from γ-enolized aroylpyruvic acids react with 2,3-diaminopyridine under mild conditions, yielding regioisomeric (Z)-2-aroylmethylene-4H-1,2-dihydropyrido[2,3-b]pyrazin-3-ones. The structure of the products and reaction chemoselectivity are discussed.

Reactions of 5-aryl-furan-2,3-diones with acylmethylenetriphenylphosphoranes: Synthesis and biological activity of 3(2H)-furanone derivatives

The Wittig reaction of 5-aryl-furan-2,3-diones 1 with acylmethylenetriphenylphosphoranes 2 conducted by heating under reflux in benzene solutions, proceeded regiospecifically to afford 2-acylmethylene-5-aryl-3(2H)-furanones 5 in good yields. When the star