21854-95-5

Basic information

• Product Name: 2,2'-DICHLOROBENZIL
• Synonyms: 2,2'-DICHLOROBENZIL;1,2-Bis(2-chlorophenyl)-1,2-ethanedione;2,2'-Dichlorodibenzoyl;Benzil, 2,2'-dichloro-;bis(2-chlorophenyl)-ethanedion;Ethanedione, bis(2-chlorophenyl)-;2,2'-DICHLORBENZIL, 97%;2,2''-DICHLOROBENZIL 98+%
• CAS NO: 21854-95-5
• Molecular Formula: C₁₄H₈Cl₂O₂
• Molecular Weight: 279.12
• EINECS: -0
• Product Categories: C13 to C14;Carbonyl Compounds;Ketones
• Mol File: 21854-95-5.mol
• Article Data: 19

Chemical Properties

• Melting Point: 132-136 °C(lit.)
• Boiling Point: 426.9±30.0 °C(Predicted)
• Appearance: /
• Density: 1.366±0.06 g/cm3(Predicted)
• BRN: 2120689
• CAS DataBase Reference: 2,2'-DICHLOROBENZIL(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2'-DICHLOROBENZIL(21854-95-5)
• EPA Substance Registry System: 2,2'-DICHLOROBENZIL(21854-95-5)

Safety Data

• Hazard Codes: Xi,N
• Statements: 36-50/53
• Safety Statements: 26-36-60-61
• RIDADR: UN 3077 9/PG 3
• WGK Germany: 3
• TSCA: Yes
• Hazardous Substances Data: 21854-95-5(Hazardous Substances Data)

Usage

Uses

1,2-Bis(2-chlorophenyl)-1,2-ethanedione is a key intermediate in the synthesis of substituted benzils and analogs with biological and pharmacological properties.

Upstream product

• 5293-77-6 1-chloro-2-(2'-chlorophenylethynyl)-benzene 
• 89-98-5 2-chloro-benzaldehyde 
• 100-52-7 benzaldehyde 
• 24133-53-7 1,2-bis(2-chlorophenyl)-1,2-ethanediol 
• 35190-16-0 2,2'-dichlorobenzoin 
• 35022-42-5 2-chlorobenzoyl cyanide 

Downstream Products

• 68240-87-9 4-(2-chlorophenyl)-5-(2'-chlorophenyl)-imidazole 
• 854884-77-8 3,4-bis-(2-chloro-phenyl)-2,5-diphenyl-cyclopentadienone 
• 90833-51-5 2,3-bis(2-chlorophenyl)-6-quinoxalinecarboxylic acid 
• 63818-43-9 2,2'-Dichlorbenzyl-dimethylmonoketal 
• 610-96-8 methyl chlorobenzoate 
• 77778-75-7 1,2-bis-(2-chloro-phenyl)-ethanone 
• 1603-61-8 (2-cyclohexyl-ethyl)-benzene 
• 3321-50-4 1,2-dicyclohexylethane 
• 103-29-7 1,1'-(1,2-ethanediyl)bisbenzene 
• 1450807-40-5 11,12-bis(2-chlorophenyl)-9H-benzo[f]imidazo[1,2-d][1,2,3]triazolo[1,5-a][1,4]diazepine 
• 22342-21-8 (2-chlorophenyl)( piperidin-1-yl)methanone 
• 668991-40-0 (S)-1,2-bis-(2-chloro-phenyl)-2-hydroxy-ethanone 
• 71776-58-4 (1R,2S)-1,2-bis-(2-chloro-phenyl)-ethane-1,2-diol 
• 249626-07-1 (R)-1,2-bis(2-chlorophenyl)-2-hydroxyethan-1-one 

Relevant articles and documents

Study of polymorphic behaviour of 2,2'-dichloro benzil using dynamic thermal and X-ray diffraction technique

2,2’-Dichloro benzil (1) was synthesized and its two polymorphic forms were obtained by recrystallization from the solvents acetone/ chloroform and ethanol. The polymorphism present in the compound was confirmed by combined results of differential scannin

Catalyst-Free and Transition-Metal-Free Approach to 1,2-Diketones via Aerobic Alkyne Oxidation

A catalyst-free and transition-metal-free method for the synthesis of 1,2-diketones from aerobic alkyne oxidation was reported. The oxidation of various internal alkynes, especially more challenging aryl-alkyl acetylenes, proceeded smoothly with inexpensive, easily handled, and commercially available potassium persulfate and an ambient air balloon, achieving the corresponding 1,2-diketones with up to 85% yields. Meanwhile, mechanistic studies indicated a radical process, and the two oxygen atoms in the 1,2-diketons were most likely from persulfate salts and molecular oxygen, respectively, rather than water.

Ruthenium/dendrimer complex immobilized on silica-functionalized magnetite nanoparticles catalyzed oxidation of stilbenes to benzil derivatives at room temperature

A new ruthenium/dendrimer complex stabilized on the surface of silica-functionalized nano-magnetite was fabricated and well characterized. The nano-catalyst showed good activity in the synthesis of benzil derivatives via the oxidation of stilbenes with high turnover frequency (TOF) at room temperature. Moreover, the catalyst could also be reused up to fifteen times without any loss of its activity.