101422-55-3

Basic information

• Product Name: 1H-Pyrrole-2,5-dione, 3,4-bis(4-bromophenyl)-
• CAS NO: 101422-55-3
• Molecular Formula: C₁₆H₉Br₂NO₂
• Molecular Weight: 407.061
• Mol File: 101422-55-3.mol
• Article Data: 7

Chemical Properties

• Boiling Point: 523.785 °C at 760 mmHg
• Flash Point: 270.576 °C
• Density: 1.787 g/cm³
• CAS DataBase Reference: 1H-Pyrrole-2,5-dione, 3,4-bis(4-bromophenyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: 1H-Pyrrole-2,5-dione, 3,4-bis(4-bromophenyl)-(101422-55-3)
• EPA Substance Registry System: 1H-Pyrrole-2,5-dione, 3,4-bis(4-bromophenyl)-(101422-55-3)

Safety Data

• Hazardous Substances Data: 101422-55-3(Hazardous Substances Data)

Usage

Molecular Structure

1H-Pyrrole-2,5-dione, 3,4-bis(4-bromophenyl)is a symmetrically substituted maleimide derivative with two bromophenyl groups attached to the 3 and 4 positions of the maleimide ring.

Usage

It is used in the synthesis of organic and polymeric materials, particularly in the production of dyes, pigments, and polymers.

Application in Organic Electronics

It serves as a key component in the development of advanced materials for optoelectronic devices.

Biological Activities

It has been investigated for its potential biological activities, showing promise in the development of new pharmaceuticals and drugs.

Upstream product

• 82193-93-9 (2E)-2,3-bis(4-bromophenyl)-2-butenedinitrile 
• 541-59-3 maleiimide 
• 673-40-5 4-bromobenzenediazonium tetrafluoroborate 
• 98-58-8 4-bromobenzenesulfonyl chloride 
• 16532-79-9 4-Bromophenylacetonitrile 
• 106-40-1 4-bromo-aniline 

Downstream Products

• 475589-18-5 3,4-bis(4-bromophenyl)-1-methyl-1H-pyrrole-2,5-dione 

Relevant articles and documents

Non-doped red organic light-emitting diodes

A convenient and improved procedure has been developed for preparing the red fluorophore N-methyl-bis(4-(N-(1-naphthyl)-N-phenylamino)phenyl)maleimide (NPAMLMe) through the efficiently synthesized bis(4-bromophenyl)fumaronitrile, the necessary precursor in preparing NPAMLMe. This allows NPAMLMe to be an easily accessible material compared with other known red, organic light-emitting diode (OLED) materials. We also report an unusual approach in fabricating red OLEDs, which does not adopt a conventional red dopant but rather NPAMLMe as the host red emitter. The performance of the non-doped red devices has been studied in depth for the first time. Devices with varied layer thickness were fabricated for examining the compatibility of NPAMLMe with commonly known materials, electron-transporting tris(8-hydroxyquinolinolato)aluminium (Alq3) and hole-transporting 4,4′-bis(4-(N-(1-naphthyl)-N-phenylamino)phenyl) biphenyl (NPB). In the presence of a hole-blocking layer of 2,9-dimethyl-4,7- diphenyl-1,10-phenanthroline (BCP), the devices emit pure red electroluminescence (EL), and it is essentially voltage-independent. Red EL with a brightness near 4600 cd m-2 and an external quantum efficiency as high as 1.6% has been achieved. The performance of such non-doped, red OLEDs is comparable with or better than contemporary, dopant-based, red OLEDs, and the simple fabrication is the advantage of the approach.

Approach to the Synthesis of Unsymmetrical/Symmetrical Maleimides via Desulfitative Arylation at Different Temperatures

New routes toward selective synthesis of both mono-and diaryl maleimides have been innovated. The mere requirement to this end is through the increase of temperature. The method works effectively for maleic anhydride and maleic acid as well. Also, the fir

Preparing method for 3,4-bis(4-bromophenyl)-1H-pyrrole-2,5-diketone

The invention relates to a preparing method for 3,4-bis(4-bromophenyl)-1H-pyrrole-2,5-diketone. The method includes the steps that maleimide, a catalyst and a ligand are added into a solvent to be stirred and added into 4-bromophenyl diazonium tetrafluoroborate in a batched manner, a reaction is carried out for 6 h to 12 h at the temperature of 0 DEG C to 80 DEG C, and the 3,4-bis(4-bromophenyl)-1H-pyrrole-2,5-diketone is obtained through extraction, drying and recrystallization. According to the method, due to the fact that the ligand participates in the reaction, a diphenyl-1H-pyrrole-2,5-diketone compound can be selectively synthesized, and in addition, the method has the beneficial effects that the product yield is high, raw materials are low in cost and easy to obtain, the reaction operation is simple, reaction conditions are moderate, and a reaction line is short; and industrial production is easy.