71637-95-1

Upstream product

• 2216-94-6 phenylpropynoic acid ethyl ester 
• 80746-50-5 1-phenyl-5-(p-tolyl)penta-1,4-diyn-3-one 
• 122-00-9 para-methylacetophenone 
• 109346-10-3 3-Iodo-6-phenyl-2-p-tolyl-pyran-4-one 
• 874-60-2 4-methyl-benzoyl chloride 
• 93-91-4 1-phenylbutan-1,3-dione 
• 71637-84-8 (Z)-1-Hydroxy-5-phenyl-1-p-tolyl-pent-1-en-4-yn-3-one 
• 107451-77-4 1-phenyl-5-(4-tolyl)-pent-1-yne-3,5-dione 

Downstream Products

• 71637-99-5 2-phenyl-6-p-tolyl-pyran-4-thione 
• 71637-93-9 1-hydroxy-2-phenyl-6-p-tolyl-1H-pyridin-4-one 
• 71637-97-3 2-phenyl-6-p-tolyl-pyran-4-one oxime 
• 1415396-51-8 C₂₂H₁₉N₂O₂⁽¹⁺⁾*Br^(1-) 
• 1415396-68-7 C₂₂H₁₉N₂O₂⁽¹⁺⁾*BF₄^(1-) 
• 1173001-17-6 4-(4-oxo-6-phenyl-4H-pyran-2-yl)benzaldehyde 
• 1173001-15-4 2-(4-bromomethylphenyl)-6-phenyl-4H-pyran-4-one hexaminium salt 
• 111736-07-3 2-(p-piperidylmethylphenyl)-6-phenyl-4H-pyran-4-one 
• 111736-09-5 2-(p-ethoxymethylphenyl)-6-phenyl-4H-pyran-4-one 
• 111736-06-2 2-(p-dimethylaminomethylphenyl)-6-phenyl-4H-pyran-4-one 
• 111736-05-1 2-(p-methylaminomethylphenyl)-6-phenyl-4H-pyran-4-one 
• 111736-03-9 2-(p-bromomethylphenyl)-6-phenyl-4H-pyran-4-thione 
• 111736-08-4 2-(p-hydroxymethylphenyl)-6-phenyl-4H-pyran-4-one 
• 111736-04-0 2-(p-aminomethylphenyl)-6-phenyl-4H-pyran-4-one 

Relevant academic research and scientific papers

Atom-economic synthesis of 4-pyrones from diynones and water

Transition-metal-free synthesis of 4-pyrones via TfOH-promoted nucleophilic addition/cyclization of diynones and water has been developed. This transformation is simple, atom economical and environmentally benign, providing rapid and efficient access to s

Synthesis of novel imidazolium and benzimidazolium salts from halomethyl derivatives of 4-pyrones

A series of mono- and bis-benzimidazolium and imidazolium salts of 4-pyrone derivatives has been synthesized in good yields, by various quaternization reactions of halomethyl derivatives of 4H-pyran-4-ones. These salts can be used as novel precursors of functionalized N-heterocyclic carbenes and some of them as novel ionic liquids.

A New Synthesis of 3-Nitro-4H-pyran-4-ones from Acetylenic β-Diketones

A new method for the synthesis of 3-nitro-4H-pyran-4-ones is described involving nitration of acetylenic β-diketones.The 3-nitropyrones are converted into the corresponding 4-thiones which afford the respective 3-nitrooximes and N-methyl-4-thiopyridones o

Synthesis and Reactions of 3-Iodo-4H-pyran-4-ones

3-Iodo-4H-pyran-4-ones have been synthesized in excellent yield by the reaction of acetylenic β-diketones with iodine monochloride and were converted into the corresponding 4H-pyran-4-thiones.The iodopyrones and thiopyrones gave with methylamine the respe