4070-75-1

Basic information

• Product Name: TRANS-1,2-DIBENZOYLETHYLENE
• Synonyms: 1,2-Dibenzoylethene;1,2-dibenzoyl-ethylen;1,4-Diphenyl-2-butene-1,4-dione;1,4-diphenyl-2-butene-4-dione;Dibenzoylethylene;Ethylene, 1,2-dibenzoyl-;USAF nd-57;1,2-DIBENZOYLETHYLENE
• CAS NO: 4070-75-1
• Molecular Formula: C₁₆H₁₂O₂
• Molecular Weight: 236.27
• EINECS: 213-498-1
• Mol File: 4070-75-1.mol
• Article Data: 19

Chemical Properties

• Melting Point: 109-112 °C(lit.)
• Boiling Point: 338.73°C (rough estimate)
• Flash Point: 138.2 °C
• Appearance: /
• Density: 1.1223 (rough estimate)
• Vapor Pressure: 1.27E-05mmHg at 25°C
• Refractive Index: 1.6290 (estimate)
• CAS DataBase Reference: TRANS-1,2-DIBENZOYLETHYLENE(CAS DataBase Reference)
• NIST Chemistry Reference: TRANS-1,2-DIBENZOYLETHYLENE(4070-75-1)
• EPA Substance Registry System: TRANS-1,2-DIBENZOYLETHYLENE(4070-75-1)

Safety Data

• Safety Statements: 22-24/25
• WGK Germany: 3
• Hazardous Substances Data: 4070-75-1(Hazardous Substances Data)

Usage

General Description

TRAN-1,2-dibenzoylethylene, also known as DBE, is a chemical compound with the molecular formula C16H12O2. It is a colorless to pale yellow liquid with a distinctive odor. DBE is mainly used as a solvent in various industries, including the production of polymers, resins, and coatings. Additionally, it is utilized as a stabilizer for organic peroxides and as a chemical intermediate in the synthesis of pharmaceuticals and agrochemicals. DBE can also be used as a reactive diluent in epoxy resins and as a component in some specialty inks and adhesives. However, it is important to handle DBE with caution as it is potentially harmful if inhaled, ingested, or comes into contact with skin.

InChI:InChI=1/C16H12O2/c17-15(13-7-3-1-4-8-13)11-12-16(18)14-9-5-2-6-10-14/h1-12H/b12-11-

Upstream product

• 68665-40-7 1,2-dibenzoylchloroethane 
• 63104-99-4 2-bromo-1,4-diphenyl-1,4-butanedione 
• 171080-06-1 1,4-diphenyl-2-(N-phenylamino)-1,4-butadienone 
• 3282-32-4 2-diazo-acetophenone 
• 107-13-1 acrylonitrile 
• 126-98-7 methacrylonitrile 
• 100-42-5 styrene 
• 1073-67-2 4-vinylbenzyl chloride 
• 622-97-9 1-ethenyl-4-methylbenzene 
• 402-50-6 1-trifluoromethyl-4-vinyl-benzene 
• 98-86-2 acetophenone 
• 955-83-9 2,5-diphenylfuran 
• 1521-51-3 rac-3-bromocyclohexene 
• 536-74-3 phenylacetylene 

Downstream Products

• 7249-42-5 NSC 43344 
• 1056-77-5 2,3,4,5-tetraphenylfuran 
• 171080-06-1 1,4-diphenyl-2-(N-phenylamino)-1,4-butadienone 
• 16513-26-1 diethyl (1,4-dioxo-1,4-diphenylbutan-2-yl)phosphonate 
• 122271-12-9 2-tert-Butyl-1,4-diphenyl-butane-1,4-dione 
• 90963-85-2 (2-Fluoren-9-ylidene-6-phenyl-2H-pyran-4-yl)-phenyl-methanone 
• 603-35-0 triphenylphosphine 
• 495-71-6 phenacylacetophenone 
• 90043-50-8 dimethyl 2-(1,4-dioxo-1,4-diphenylbutan-2-yl)malonate 
• 3238-03-7 (2-benzoylcyclopropyl)(phenyl)methanone 
• 68614-52-8 2-(p-methoxyphenyl)-1,4-diphenyl-1,4-butanedione 
• 68614-53-9 2-(2,4-Dimethoxy-phenyl)-1,4-diphenyl-butane-1,4-dione 

Relevant articles and documents

Comparison of the photocatalytic activity of novel hybrid photocatalysts based on phthalocyanines, subphthalocyanines and porphyrins immobilized onto nanoporous gold

A series of different singlet oxygen photosensitizers was immobilized onto nanoporous gold powder with a mean pore size of 40 nmviacopper catalyzed azide-alkyne cycloaddition. The attachment of phthalocyanine and porphyrin derivatives was performed on the peripheral substituent of the macrocycle, whereas the subphthalocyanine derivatives were attachedviathe axial substituent with respect to the macrocyclic ring system. All obtained hybrid systems were studied in the photooxidation of 2,5-diphenylfuran as a chemical singlet oxygen quencher and showed increased photocatalytic activity compared to the same amount of the corresponding photosensitizer in solution due to photoinduced interactions of the plasmon resonance of the nanostructured gold support and the attached photosensitizer. The understanding of the different photophysical interactions depending on the coordination mode of the macrocycle as well as the position of the absorbance in the electromagnetic spectrum is an important point in the development towards highly active hybrid photocatalysts covering a broad absorption range within the spectrum of visible light.

Rh(III)-Catalyzed Cascade Reactions of Sulfoxonium Ylides with α-Diazocarbonyl Compounds: An Access to Highly Functionalized Naphthalenones

An unprecedented cascade reaction of benzoyl sulfoxonium ylides with α-diazocarbonyl compounds leading to the formation of highly functionalized naphthalenones containing a β-ketosulfoxonium ylide moiety is presented. Promisingly, the naphthalenone derivative thus obtained was found to be a versatile intermediate toward diversely functionalized naphthalene derivatives including substituted 1-naphthol, 2-hydroxynaphthalen-1(2H)-one, naphthalen-1,2-dione, and 2-(methylsulfinyl)naphthalen-1-ol.

Rhodium-Catalyzed 1,1-Hydroacylation of Thioacyl Carbenes with Alkynyl Aldehydes and Subsequent Cyclization

A rhodium-catalyzed 1,1-hydroacylation of thioacyl carbenes with alkynyl and alkenyl aldehydes and subsequent 6-endo-trig/dig cyclization are realized, giving structurally diverse 4H-thiopyran-4-ones and 2,3-dihydro-4H-thiopyran-4-ones in moderate to good yields. The oxidative addition of Rh(I) to aldehydes is proposed to be the turnover-limiting step. Manipulations of estrones demonstrate the applications of our formal (3 + 3) transannulations in the structural modifications of natural products.