3988-03-2

Basic information

• Product Name: 4,4'-Dibromobenzophenone
• Synonyms: BIS-(4-BROMO-PHENYL)-METHANONE;4,4'-DBP;4,4'-DIBROMOBENZOPHENONE;Methanone,bis(4-bromophenyl)-;Methanone,bis[4-bromophenyl]-;2,4,5-TRICHLORONITROBENZENE PESTANAL, 25;4,4''-DIBROMOBENZOPHENONE 98+%;4,4'-Dibromobenzophenone
• CAS NO: 3988-03-2
• Molecular Formula: C₁₃H₈Br₂O
• Molecular Weight: 340.01
• EINECS: 223-632-0
• Product Categories: Aromatic Benzophenones & Derivatives (substituted);Alpha sort;D;DAlphabetic;DIA - DIC;Pesticides&Metabolites;C13 to C14;Carbonyl Compounds;Ketones
• Mol File: 3988-03-2.mol
• Article Data: 29

Chemical Properties

• Melting Point: 171-174 °C(lit.)
• Boiling Point: 395°C (rough estimate)
• Flash Point: 121 °C
• Appearance: White to creamish White crystaline powder.
• Density: 1.6584 (rough estimate)
• Refractive Index: 1.5220 (estimate)
• Storage Temp.: Keep in dark place,Sealed in dry,Room Temperature
• Solubility: Chloroform (Slightly), Methanol (Slightly)
• Water Solubility: Soluble in ethanol, 2-propanol, acetone and toluene. Miscible with water.
• BRN: 2049958
• CAS DataBase Reference: 4,4'-Dibromobenzophenone(CAS DataBase Reference)
• NIST Chemistry Reference: 4,4'-Dibromobenzophenone(3988-03-2)
• EPA Substance Registry System: 4,4'-Dibromobenzophenone(3988-03-2)

Safety Data

• Statements: 36/37/38
• Safety Statements: 22-24/25-37-26
• RIDADR: UN 2811
• WGK Germany: 3
• Hazardous Substances Data: 3988-03-2(Hazardous Substances Data)

Usage

Description

4,4'-Dibromobenzophenone is an organic compound that features a benzophenone core with two bromine atoms attached to the para positions of the benzene rings. It is a significant degradation product of the pesticide bromopropylate, which is commonly found in honey.

Uses

Used in Polymer Synthesis:
4,4'-Dibromobenzophenone is utilized as a monomer in the synthesis of high molecular weight poly(p-phenylene) derivatives. This application takes advantage of its reactive bromine atoms, which participate in palladium-catalyzed polycondensation reactions to form the desired polymers. These polymers are known for their potential applications in various industries due to their unique properties, such as electrical conductivity and thermal stability.

Upstream product

• 871881-58-2 tetrakis-(4-bromo-phenyl)-ethane-1,2-diol 
• 15719-64-9 methylammonium carbonate 
• 39179-74-3 C₃₁H₂₈Br₂O₂ 
• 201230-82-2 carbon monoxide 
• 65826-67-7 bis(4-bromophenyl)iodonium bromide 
• 26204-11-5 2-(4,4'-dibromo-benzhydryl)-[1,3]dioxolane 
• 67132-33-6 4,4'-dibromothiobenzophenone S-oxide 
• 67705-85-5 tris(p-bromophenyl)methane 
• 26204-08-0 4,4'-(2-bromoethene-1,1-diyl)bis(bromobenzene) 
• 101-81-5 Diphenylmethane 
• 500790-39-6 1,1,1-tribromo-2,2-bis-(4-bromo-phenyl)-ethane 
• 18066-91-6 4,4'-(bromomethylene)bis(bromobenzene) 
• 611-98-3 4,4'-diaminobenzophenone 
• 22037-28-1 3-bromofurane 

Downstream Products

• 101875-61-0 bis-(4-bromo-phenyl)-[2]pyridyl-methanol 
• 854750-20-2 4,4'-dibromo-4''-chloro-trityl chloride 
• 100954-57-2 3,3-bis-(4-bromo-phenyl)-3-hydroxy-propionitrile 
• 130986-74-2 4,4-bis-(4-bromo-phenyl)-4-hydroxy-but-2-ynoic acid 
• 856370-63-3 1,1-bis-(4-bromo-phenyl)-2-(4-chloro-phenyl)-ethanol 
• 118912-46-2 2,2-bis(4-bromophenyl)-1,3-dioxolane 
• 36240-98-9 4,4'-dibromothiobenzophenone 
• 91-01-0 1,1-Diphenylmethanol 
• 92426-34-1 1,1-bis-(4-bromophenyl)prop-2-yn-1-ol 
• 372967-50-5 1,1-di(4-bromophenyl)-3-[2-(phenylethynyl)phenyl]-2-propyn-1-ol 
• 494865-05-3 ethyl 3,3-bis-(4-bromophenyl)-acrylate 
• 79485-21-5 1,1'-(Difluormethylen)bis(4-brombenzol) 
• 858445-49-5 1,1-bis(4-bromophenyl)-3-phenylprop-2-yn-1-ol 
• 1029634-23-8 8,8-bis(4-bromophenyl)-8H-indolo-[3,2,1-de]acridine 

Relevant articles and documents

Visible light-mediated, high-efficiency oxidation of benzyl to acetophenone catalyzed by fluorescein

An environmentally friendly aerobic oxidation of benzyl C(sp3)-H bonds to ketones via selective oxidation catalysis was developed. Fluorescein is an efficient photocatalyst with excellent chemical selectivity. The reaction has a wide substrate scope, and a successful gram-scale experiment demonstrated its potential industrial utility.

Method for preparing symmetric diarylketone through catalytic oxidative carbonylation

The invention discloses a method for preparing symmetric diarylketone of a formula (I) as shown in the description. The method comprises the following steps: mixing arylboronic acid (II) (Ar-B(OH)2 (II)), a palladium catalyst, a promoter and an organic solvent in a reactor, introducing air and CO having a volume ratio of (7-19):1, reacting under the conditions of a pressure of 1-6 atm and a temperature of 30-80 DEG C for 8-16 hours, and performing after-treatment on the reaction solution, thereby obtaining the product symmetric diarylketone. According to the method disclosed by the invention,the air directly serves as an oxidizing agent to replace the O2 to be applied to oxidative carbonylation of the arylboronic acid, and the ratio of the air to CO is beyond an explosion limit. Therefore, the catalytic system is safe and economic. The palladium catalyst is small in dosage and simple in separation and can be recycled for several times. The method disclosed by the invention is mild inreaction condition, excellent in substrate suitability and high in yield.

NEW CYCLOADDUCT PRECURSORS OF DIHALOBENZOPHENONES AND PREPARATIONS THEREOF

The invention relates to new compounds of formula (I): wherein X represents a halogen atom selected from the group consisting of fluorine, chlorine, bromine and iodine, which are useful for the preparation of 4,4'dihalobenzophenones of formula (III): wherein X is as defined above.