73790-20-2

Basic information

• Product Name: Ethanedione, bis[4-(trifluoromethyl)phenyl]-
• Synonyms: 1,2-Bis[4-(trifluoromethyl)phenyl]-1,2-ethanedione;1,2-Bis(4-trifluoromethylphenyl)-ethan-1,2-dione;4,4'-Bis(trifluoromethyl)benzil;Ethanedione,bis[4-(trifluoromethyl)phenyl];1,2-bis(p-trifluoromethylphenyl)ethanedione;1,2-bis(4-(trifluoromethyl)phenyl)ethane-1,2-dione
• CAS NO: 73790-20-2
• Molecular Formula: C16H8F6O2
• Molecular Weight: 346.229
• Mol File: 73790-20-2.mol
• Article Data: 22

Chemical Properties

• Melting Point: 134-136 °C(Solv: ethanol (64-17-5))
• Boiling Point: 378.6±42.0 °C(Predicted)
• Density: 1.399±0.06 g/cm3(Predicted)
• CAS DataBase Reference: Ethanedione, bis[4-(trifluoromethyl)phenyl]-(CAS DataBase Reference)
• NIST Chemistry Reference: Ethanedione, bis[4-(trifluoromethyl)phenyl]-(73790-20-2)
• EPA Substance Registry System: Ethanedione, bis[4-(trifluoromethyl)phenyl]-(73790-20-2)

Safety Data

• Hazardous Substances Data: 73790-20-2(Hazardous Substances Data)

Upstream product

• 402-43-7 p-trifluoromethylphenyl bromide 
• 95-92-1 oxalic acid diethyl ester 
• 66659-90-3 1,2-bis[4-(trifluoromethyl)phenyl]ethanone 
• 59417-06-0 1,4-dimethyl-2,3-dioxopiperazine 
• 6140-17-6 4-methylbenzotrifluoride 
• 349-95-1 4-(trifluoromethyl)benzylic alcohol 
• 199166-26-2 (±)-1,2-bis(4-(trifluoromethyl)phenyl)ethane-1,2-diol 
• 455-19-6 4-Trifluoromethylbenzaldehyde 
• 119757-51-6 1,2-bis(4-(trifluoromethyl)phenyl)ethyne 
• 73627-36-8 1,2-bis[4-(trifluoromethyl)phenyl]-2-hydroxyethanone 
• 2967-66-0 methyl 4-(trifluoromethyl)benzoate 
• 455-13-0 4-Iodobenzotrifluoride 

Downstream Products

• 1393377-88-2 C₃₁H₁₆Br₂F₆O 
• 1398565-76-8 4-oxo-2-(4-(trifluoromethyl)benzoyl)-4-(4-(trifluoromethyl)phenyl)butanenitrile 
• 1617534-70-9 1-(2-bromophenyl)-2-oxo-2-(4-(trifluoromethyl)phenyl)ethyl 4-(trifluoromethyl)benzoate 
• 1617534-73-2 1-(2-bromophenyl)-2-(4-(trifluoromethyl)phenyl)ethane-1,2-dione 
• 1630041-31-4 C₂₇H₂₂F₆N₂O₂ 
• 1158741-25-3 2,3,7,8-tetra(4′-trifluoromethylphenyl)pyrazino[2,3-g]quinoxaline 

Relevant articles and documents

Fused-ring acceptors based on quinoxaline unit for highly efficient single-junction organic solar cells with low charge recombination

Two non-fullerene small molecule acceptors (TFQ-F and TFQ-Cl) based on quinoxaline unit were designed and synthesized for efficient organic solar cells (OSCs). These two acceptors showed intense absorption up to 900 nm and high thermal stabilities with decomposition temperatures over 360 °C due to their fused-ring skeletons. TFQ-F and TFQ-Cl are the A-D-A′-D-A type acceptors (A/A′ for acceptor unit and D for donor unit). TFQ-F and TFQ-Cl have the same D-A′-D fragment, which was flanked with different ending groups. The effect of different ending groups on their photophysical properties, electrochemical behaviors, micro-structures and charge recombination properties of active layers, and device performance were investigated systematically. PM6 with the complementary absorption to the two acceptors was used as the donor material. The pristine PM6:TFQ-F blend films displayed the optimal morphologies as revealed by AFM and TEM measurement. Organic solar cells based on PM6:TFQ-Cl blend film showed high JSC of 25.19 mA/cm2 and PCE of 13.2%. The Voc, JSC and PCE for PM6:TFQ-F film based device were 0.857 V, 23.70 mA/cm2 and 13.51%, respectively. The dependence of VOC/JSC on various light intensities indicated that PM6:TFQ-F/Cl based device had low charge recombination.

Phosphorus(III)-Mediated, Tandem Deoxygenative Geminal Chlorofluorination of 1,2-Diketones

Tetrasubstituted carbon containing two different halogen substituents was constructed in a single-step operation by utilizing the carbene-like reactivity of dioxaphospholene through the tandem reaction of electrophilic and nucleophilic halogenating reagents. It was crucial to devise non-dealkylatable phosphoramidite, which enabled the efficient formation of geminal chlorofluorides from various 1,2-diketones with (PhSO2)2NF and n-Bu4NCl. In addition, selective functionalization of the chlorine substituent was demonstrated, and the absence of halogen scrambling was confirmed.

Preparation method of bibenzoyl compound and application

The invention provides a preparation method for synthesizing dibenzoyl compounds. Under the co catalysis of cuprous bromide, sodium nitrite, DDQ and protonic acid, a benzyl alcohol compound is oxidized by oxygen, and a bibenzoyl compound is obtained by a one-step method. Through the appropriate selection and coordination of the catalyst, reaction conditions and the like, target products with highyield are obtained, and in the preparation process, the efficiency is good, and the cost is low; and the technical significance and application value in the field of pharmaceutical intermediates synthesis are significant, and the market prospect is wide.