21326-80-7

Usage

Structure

A derivative of biphenyl with two benzene rings connected by a 1,2-ethynediyl linker.

Industrial applications

Production of polymers
Production of plastics
Production of dyes

Utilization

Building block in the synthesis of more complex organic compounds
Potential applications in the field of organic electronics
Chemical intermediate in pharmaceutical manufacturing

Safety concerns

May pose risks to human health if not properly managed
May pose risks to the environment if not properly managed

Handling

Requires careful handling and management to minimize potential risks.

Upstream product

• 1591-31-7 4-iodo-biphenyl 
• 74-86-2 acetylene 
• 92-66-0 4-bromo-1,1'-biphenyl 
• 1066-54-2 trimethylsilylacetylene 
• 2567-29-5 p-phenylbenzyl bromide 
• 994-71-8 bis(tributylstannyl)acetylene 
• 142-45-0 Acetylenedicarboxylic acid 
• 29079-00-3 4-ethynyl-1,1'-biphenyl 
• 14002-51-8 4-biphenyl-carboxylic acid chloride 
• 36987-19-6 C₄₄H₃₃OP 

Downstream Products

• 92-92-2 biphenyl-4-carboxylic acid 
• 900806-52-2 bis(3-methylselenobiphenyl-4-yl)acetylene 
• 105770-34-1 Tetrakis-biphenyl-4-yl-furan 
• 1373437-62-7 [Mo(CC₆H₄C₆H₅)(NCC₆H₄C₆H₅)(OC(CH₃)(CF₃)2)3] 
• 1373437-64-9 [Mo(CC₆H₄C₆H₅)(OC(CF₃)3)3(NCC₆H₄C₆H₅)] 
• 84350-70-9 1,2-bis-(diphenyl)-o-carborane 
• 179244-39-4 (Z)-1,2,3,4-Tetrakis-biphenyl-4-yl-but-2-ene-1,4-dione 
• 4746-80-9 4,4'-diphenylbenzil 

Relevant academic research and scientific papers

Porous organic polymer with: In situ generated palladium nanoparticles as a phase-transfer catalyst for Sonogashira cross-coupling reaction in water

A new Pd nanoparticle loaded and imidazolium-ionic liquid decorated organic polymer of Pd@PTC-POP was readily fabricated via a Pd(PPh3)4 catalysed in situ one-pot Suzuki cross-coupling reaction between imidazolium attached dibromoben

Steric, conjugation and electronic impacts on the photoluminescence and electroluminescence properties of luminogens based on phosphindole oxide

Aggregation-induced emission (AIE) is currently receiving intense interest because of its important implications in photophysics. The structure-property relationship decipherment of AIE luminogens is of crucial importance for the fundamental understanding and application exploration. In this research, a series of novel luminogens based on phosphindole oxide (PIO), including a peculiar one with a folded conformation and apparent through-space conjugation, were synthesized and studied as models to elucidate the AIE mechanism. The significant impacts of steric, conjugation and electronic effects on the AIE property are presented based on the results of crystallography analysis, optical spectra measurements and theoretical computation. Non-doped yellow organic light-emitting diodes were fabricated with the new PIO-based luminogens, and they exhibited high brightness, good electroluminescence efficiencies and low efficiency roll-off.

Symmetric diarylacetylenes: One-pot syntheses and solution photoluminescence

Bis(tri-n-butylstannyl)acetylene was synthesized and used to create a series of symmetric diarylacetylenes via a one-step Stille coupling protocol with Pd(PPh3)4 as the catalyst. In many cases, the product simply crystallized in good yields from the reaction mixture upon cooling after reflux at 100 °C or upon removal of solvent. The diarylacetylenes were studied using UV-vis and fluorescence spectroscopies, which showed that naphthyl- and biphenyl-substituted acetylenes had very high solution-state fluorescence quantum yields.

NOVEL CONDENSED POLYCYCLIC AROMATIC COMPOUND AND USE THEREOF

The object of the present invention to provide an organic semiconductor device comprising an organic semiconductor material satisfying both the requirement of high electron field-effect mobility and high on/off current ratio. The present invention provide

2,7-Diphenyl[1]benzoselenopheno[3,2-b][1]benzoselenophene as a stable organic semiconductor for a high-performance field-effect transistor

[1]Benzoselenopheno[3,2-b][1]benzoselenophene (BSBS) and its 2,7-diphenyl derivative (DPh-BSBS) were readily synthesized from diphenylacetylene and bis(biphenyl-4-yl)acetylene, respectively, with a newly developed straightforward selenocyclization protoco

Oxidation of Aromatic Compounds. IV. Oxidation of Symmetrical Diarylacetylenes in the CF3COOH-CH2Cl2-PbO2 System. A New One-Pot Synthesis of 1,2,3,4-Tetraaryl-2-butene-1,4-diones

Oxidation of symmetrical diarylacetylenes in the CF3COOH-CH2Cl2-PbO2 system (0-20 deg C, 1-3 h) yields 1,2,3,4-tetraaryl-2-butene-1,4-diones.According to (1)H NMR and GC-MS data the compounds synthesized have Z configuration.

DI(ACYLOXY)IODOARENES IN ORGANIC SYNTHESIS. III. REACTION OF DIARYLACETYLENES WITH BIS(TRIFLUOROACETOXY)IODOBENZENE

Bis(trifluoroacetoxy)iodobenzene in chloroform oxidizes diarylacetylenes containing electron-donating and not very strong electron-withdrawing substituents to the corresponding benzils with high yields.The reaction probably takes place through the intermediate formation of vinyl- and alkyliodonium salts.Benzoin is oxidized to benzil.