33524-67-3

Basic information

• Product Name: 3,4,5,6-Tetraphenyl-2H-pyran-2-one
• Synonyms: 3,4,5,6-Tetraphenyl-2H-pyran-2-one;TETRAPHENYL-2-PYRONE
• CAS NO: 33524-67-3
• Molecular Formula: C₂₉H₂₀O₂
• Molecular Weight: 400.47
• Mol File: 33524-67-3.mol
• Article Data: 10

Chemical Properties

• Boiling Point: 620.8°C at 760 mmHg
• Flash Point: 260.1°C
• Appearance: /
• Density: 1.216g/cm³
• Vapor Pressure: 2.45E-15mmHg at 25°C
• Refractive Index: 1.661
• CAS DataBase Reference: 3,4,5,6-Tetraphenyl-2H-pyran-2-one(CAS DataBase Reference)
• NIST Chemistry Reference: 3,4,5,6-Tetraphenyl-2H-pyran-2-one(33524-67-3)
• EPA Substance Registry System: 3,4,5,6-Tetraphenyl-2H-pyran-2-one(33524-67-3)

Safety Data

• Hazardous Substances Data: 33524-67-3(Hazardous Substances Data)

Usage

InChI:InChI=1/C29H20O2/c30-29-27(23-17-9-3-10-18-23)25(21-13-5-1-6-14-21)26(22-15-7-2-8-16-22)28(31-29)24-19-11-4-12-20-24/h1-20H

Upstream product

• 854820-79-4 4,5-dichloro-2,3,4,5-tetraphenyl-cyclopent-2-enone 
• 1059-46-7 4,5-epoxy-2,3,4,5-tetraphenyl-cyclopent-2-enone 
• 67-64-1 acetone 
• 563-63-3 silver(I) acetate 
• 64-19-7 acetic acid 
• 479-33-4 2,3,4,5-tetraphenylcyclopenta-2,4-dienone 
• 501-65-5 diphenyl acetylene 
• 212315-76-9 methyl (Z)-3-iodo-2,3-diphenyl-2-propenoate 
• 7647-01-0 hydrogenchloride 
• 108-38-3 m-xylene 
• 1504-58-1 3-Phenyl-2-propyn-1-ol 
• 222421-22-9 (Z)-3-iodo-2-phenyl-3-phenylprop-2-en-1-ol 
• 253284-56-9 (Z)-3-Iodo-2,3-diphenyl-propenal 
• 825-44-5 benzothiophene-1,1-dioxide 

Downstream Products

• 1056-77-5 2,3,4,5-tetraphenylfuran 
• 99027-74-4 6,7,8,9-tetraphenylbenzocyclo-octene 
• 81740-84-3 2,2,4,4,6,6-Hexakis-trimethylsilanyl-[1,3,5,2,4,6]trioxatrisilinane 
• 86786-36-9 Trimethyl-{phenyl-[3,4,5,6-tetraphenyl-pyran-(2Z)-ylidene]-methoxy}-silane 
• 14657-87-5 pentaphenylphosphinine 

Relevant articles and documents

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Regioselective Synthesis of 5-Metalated 2-Pyrones by Intramolecular Oxymetalation of Carbonyl-ene-yne Compounds Using Indium Trihalide

The oxyindation of carbonyl-ene-yne compounds with indium trihalides proceeded efficiently to give di-, tri-, and tetrasubstituted 2-pyrones bearing a carbon-indium bond. The metalated 2-pyrone and a zwitterion intermediate were identified by X-ray crystallographic analysis. The application of organoindium compounds to oxidation or cross-coupling provided easy access to various multifunctionalized 2-pyrones. Some 2-pyrone derivatives show intense fluorescence only in the solid state (aggregation-induced emission).

Rhodium(III)-catalysed decarbonylative coupling of maleic anhydrides with alkynes

A formal [5 - 1 + 2] annulation for the preparation of substituted α-pyrones is reported. The reaction involves the decarbonylative coupling of substituted maleic anhydrides with internal alkynes in the presence of a rhodium(III) catalyst and a copper(II)