34959-15-4

Basic information

• Product Name: 4H-Pyran-4-one, 3,5-dibenzoyl-2,6-diphenyl-
• Synonyms: 3,5-dibenzoyl-2,6-diphenyl-4H-pyran-4-one
• CAS NO: 34959-15-4
• Molecular Formula: C₃₁H₂₀O₄
• Molecular Weight: 456.4881
• Mol File: 34959-15-4.mol
• Article Data: 3

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 4H-Pyran-4-one, 3,5-dibenzoyl-2,6-diphenyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 4H-Pyran-4-one, 3,5-dibenzoyl-2,6-diphenyl-(34959-15-4)
• EPA Substance Registry System: 4H-Pyran-4-one, 3,5-dibenzoyl-2,6-diphenyl-(34959-15-4)

Safety Data

• Hazardous Substances Data: 34959-15-4(Hazardous Substances Data)

Upstream product

• 79-37-8 oxalyl dichloride 
• 120-46-7 1,3-diphenylpropanedione 
• 17571-17-4 4-benzoyl-5-phenyl-furan-2,3-dione 

Downstream Products

• 120-46-7 1,3-diphenylpropanedione 

Relevant articles and documents

A simple synthesis of 5-ethoxycarbonyl-6-phenyl-1,3-dioxin-4-ones and ethyl 3-benzoyl-4-oxo-2,6-diphenylpyran-5-carboxylate

4-Ethoxycarbonyl-5-phenyl-2,3-dihydrofuran-2,3-dione 1 reacts with aldehydes via the acylketene intermediate 2 giving the 1,3-dioxin-4-ones 3a-e and the 1,4-bis(5-ethoxycarbonyl-4-oxo-6-phenyl-4H-1,3-dioxin-2-yl)benzene 4, and a one step reaction between dibenzoylmethane and oxalylchloride gave 3,5-dibenzoyl-2,6-diphenyl-4-pyrone 7. The reaction of 1 with dibenzoylmethane, a dicarbonyl compound, provided ethyl 3-benzoyl-4-oxo-2,6-diphenylpyran-5-carboxylate derivative 9. Compound 9 was converted into the corresponding ethyl 3-benzoyl-4-hydroxy-2,6-diphenylpyridine-5-carboxylate derivative 10 via its reaction with ammonium hydroxyde solution in 1-butanol.

HETEROCYCLIC REARRANGEMENTS: New CUMULENES And ACETYLENES

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