1083-01-8

Upstream product

• 100374-57-0 Methyl 4-oxo-6-phenyl-4H-pyran-2-carboxylate 
• 2397-77-5 Ethyl 4-oxo-6-phenyl-4H-pyran-2-carboxylate 
• 76782-18-8 2-(dimethylaminomethylene)-1-phenylbutane-1,3-dione 
• 76782-19-9 ethyl 5-benzoyl-4-oxo-4H-pyrane-2-carboxylate 
• 1528749-01-0 ethyl 5-benzoyl-2-hydroxy-4-oxo-6-(piperidin-1yl)hexa-2,5-dienoate 
• 1027-41-4 ethyl (E)-2,4-dioxo-6-phenylhex-5-enoate 
• 1154-90-1 Ethyl 5,6-dibromo-2,4-dioxo-6-phenylhexanoate 
• 93-91-4 1-phenylbutan-1,3-dione 
• 122-57-6 1-Phenylbut-1-en-3-one 
• 78526-66-6 methyl 5,6-dibromo-2,4-dioxo-6-phenylhexanoate 
• 57409-49-1 methyl 2,4-dioxo-6-phenylhex-5-enoate 
• 553-90-2 Dimethyl oxalate 
• 1027-41-4 2,4-dioxo-6-phenyl-hex-5-enoic acid ethyl ester 

Downstream Products

• 85815-11-8 4-Oxo-6-phenyl-4H-pyran-2-carboxylic acid (1H-tetrazol-5-yl)-amide 
• 1152096-35-9 ethyl 4-hydroxy-6-phenylpyridine-2-carboxylate 
• 1241726-43-1 4-hydroxy-6-phenylpyridine-2-carbohydrazide 
• 1241726-45-3 3-(1,5-diphenyl-1H-pyrazol-3-yl)-1H-indole-2-carboxylic acid 
• 78296-37-4 4-hydroxy-6-phenylpyridine-2-carboxylic acid 
• 1241726-44-2 3-(1,5-diphenyl-1H-pyrazol-3-yl)-2-(2-phenylhydrazono)propionic acid 
• 78526-46-2 2-Phenyl-4'-p-tolylsulfanyl-4'H-[1,1']bipyridinyl-4-one 
• 78526-45-1 4'-Benzylsulfanyl-2-phenyl-4'H-[1,1']bipyridinyl-4-one 
• 2397-79-7 2-phenyl-4H-pyran-4-one 

Relevant academic research and scientific papers

Synthesis of 6-aryl- and 5-aroylcomanic acids from 5-aroyl-2-carbethoxy-4- pyrones via a deformylative rearrangement and ring-opening/ring-closure sequence

The reaction of 1-aryl-2-(dimethylaminomethylene)butane-1,3-diones with diethyl oxalate in the presence of sodium hydride in THF gave ethyl 5-aroyl-4-oxo-4H-pyran-2-carboxylates, from which 4-oxo-6-aryl-4H-pyran-2- carboxylic acids (6-arylcomanic acids) w

Preparative synthesis of ethyl 5-acyl-4-pyrone-2-carboxylates and 6-aryl-, 6-alkyl-, and 5-acylcomanic acids on their basis

A simple and efficient method for the synthesis of ethyl 5-alkanoyl- and 5-aroyl-4-pyrone-2-carboxylates was developed, which is based on the condensation of 1-R-2-(dimethyl-aminomethylidene)butane-1,3-diones, obtained from 1,3-diketones and dimethylforma

New derivatives of 6-phenylcomanic acid

Ethyl 6-phenylcomanic acid with hydrazine hydrate and hydroxylamine gives 4-oxo-6-phenyl-4H/-pyran-2-carbohydrazide and 4-oxo-6-phenyl-4H-pyran-2- carbohydroxamic acid, whereas 6-phenylcomanic acid with ammonia in aqueous DMSO gives 4-hydroxy-6-phenylpico

CHARGE CONTROL AGENT AND RELATED TECHNIQUE

[PROBLEMS] Providing a charge control agent that has a negative charge providing property at a practical level, is colorless to light-colored and usable in color toners, produces static charges stable to environmental changes by electrifying the resin pow

Synthetic Applications of N-N Linked Heterocycles. Part 12. The Preparation of 4-Alkylthio- and 4-Arylthio-pyridines by Regiospecific Attack of Thioalkoxide Ions on N-(4-Oxopyridin-1-yl)pyridinium Salts

Thiolate ions add regiospecifically to N-(4-oxopyridin-1-yl)pyridinium salts (2)-(7) to give in good to excellent yields only the 1,4-dihydropyridine adducts (8)-(13), regardless of whether or not the pyridone moiety carries substituents for sterically shielding the 2- and 6-positions of the pyridinium ring.The addition is believed to be thermodynamically controlled.Decomposition of the dihydro-adducts under free-radical conditions, or by pyrolysis, gives good yields of pyridin-4-yl thioethers (14) and (16) though the reaction failed with the 2-methyl adducts (9).An improved synthesis of 6-methyl-4-oxopyran-2-carboxylic acid is also described.