7510-34-1

Basic information

• Product Name: 1,2,3,4-Tetraphenyl-2-butene-1,4-dione
• Synonyms: 1,2,3,4-Tetraphenyl-2-butene-1,4-dione
• CAS NO: 7510-34-1
• Molecular Formula: C₂₈H₂₀O₂
• Molecular Weight: 0
• Mol File: 7510-34-1.mol

Chemical Properties

• Boiling Point: 546.3°C at 760 mmHg
• Flash Point: 200.4°C
• Appearance: /
• Density: 1.172g/cm³
• Vapor Pressure: 5.45E-12mmHg at 25°C
• Refractive Index: 1.645
• CAS DataBase Reference: 1,2,3,4-Tetraphenyl-2-butene-1,4-dione(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2,3,4-Tetraphenyl-2-butene-1,4-dione(7510-34-1)
• EPA Substance Registry System: 1,2,3,4-Tetraphenyl-2-butene-1,4-dione(7510-34-1)

Safety Data

• Hazardous Substances Data: 7510-34-1(Hazardous Substances Data)

Usage

Appearance

Yellow to orange solid

Usage

Organic synthesis, intermediate in the production of dyes and pharmaceuticals

Chemical structure

Central butene-1,4-dione core with four phenyl groups attached to the carbon atoms

Reactivity

Highly reactive

Potential applications

Photochemistry, polymerization, synthesis of organic compounds

Safety precautions

Handle with care and in accordance with safety guidelines due to reactivity and potential health hazards.

InChI:InChI=1/C28H20O2/c29-27(23-17-9-3-10-18-23)25(21-13-5-1-6-14-21)26(22-15-7-2-8-16-22)28(30)24-19-11-4-12-20-24/h1-20H/b26-25-

Upstream product

• 65-85-0 benzoic acid 
• 98-95-3 nitrobenzene 
• 447-31-4 Desyl chloride 
• 3469-17-8 2-diazo-1,2-diphenylethan-1-one 
• 1884-68-0 tetraphenylthiophene 
• 16939-18-7 1,2-diphenyl-2-thioxoethanone 
• 93-58-3 benzoic acid methyl ester 
• 119-53-9 2-hydroxy-2-phenylacetophenone 
• 108-24-7 acetic anhydride 
• 861533-66-6 2-methoxy-1,2,3,4-tetraphenyl-butane-1,4-dione 
• 1056-77-5 2,3,4,5-tetraphenylfuran 
• 67-56-1 methanol 
• 613-90-1 benzoyl cyanide 
• 5435-97-2 1-phenyl-1,2-dibenzoylethylene 

Downstream Products

• 21211-53-0 1-hydroxy-2,3,4,5-tetraphenylpyrrole 
• 34950-38-4 3,4,5,6-tetraphenylpyridazine 
• 33641-30-4 1-phenylamino-2,3,4,5-tetraphenylpyrrole 
• 1056-77-5 2,3,4,5-tetraphenylfuran 
• 6963-25-3 3,3,4,5-tetraphenyl-2(3H)-furanone 
• 134-81-6 benzil 
• 10496-80-7 (E)-1,2,3,4-tetraphenylbut-2-ene-1,4-dione 
• 15733-00-3 1c-benzoyloxy-1t.2.3-triphenyl-propen-⁽¹⁾-one-⁽³⁾ 
• 4793-85-5 2,3,4,4-tetraphenyl-2-pyrrolin-5-one 
• 10516-92-4 1,2,3,4-tetraphenylbutane-1,4-dione 
• 7731-77-3 1-methyl-3,3,4,5-tetraphenyl-1,3-dihydro-pyrrol-2-one 
• 96216-31-8 1,4-bis-(4-bromo-phenyl)-2,3-diphenyl-but-2-ene-1,4-dione 
• 2405-95-0 N,N-dimethyl-4-tetraphenylpyrrol-1-yl-aniline 
• 2454-98-0 1-(4-dimethylamino-phenyl)-3,3,4,5-tetraphenyl-1,3-dihydro-pyrrol-2-one 

Relevant articles and documents

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Oxidation of aromatic compounds: XVII. Oxidative cross-dimerization of diarylacetylenes in the system CF3CO2H-CH 2Cl2-PbO2. Characteristic of cation-radicals of diarylacetylenes by cyclic voltammetry and ESR spectroscopy

The oxidation of mixtures of diarylacetylene ArC≡CAr and Ar′C≡CAr′ in a system CF3CO2H-CH 2Cl2-PbO2 (0°C, 1.5 h) results in products of cross-dimerization, (Z)-1,2,3,4-tetraarylbut-2-ene-1,4-diones Ar(ArCO) C=C(COAr′)Ar′. The routes of transformation of intermediate cation-radicals of diarylacetylenes [ArC≡CAr]+? into the final products of oxidative dimerization are elucidated. By cyclic voltammetry and ESR spectroscopy the high reactivity of the diarylacetylene cation-radicals is demonstrated, the character of their singly occupied molecular orbitals (a2 or b1) has been revealed by ESR method.

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