477587-89-6

Basic information

• Product Name: 1,1-Biphenyl,4-ethyl-4-ethynyl-(9CI)
• Synonyms: 1,1-Biphenyl,4-ethyl-4-ethynyl-(9CI);4-Ethyl-4'-ethynyl-1,1'-biphenyl;4-Ethyl-4'-ethynylbiphenyl;1,1-Biphenyl,4-ethyl-4-ethynyl-;4-Ethynyl-4'-ethyl-1,1'-Biphenyl;1,1-Bipheny,4-ethyl-4-ethynyl-(9CI)
• CAS NO: 477587-89-6
• Molecular Formula: C16H14
• Molecular Weight: 206.287
• Product Categories: ETHYL;Liquid crystal intermediates
• Mol File: 477587-89-6.mol
• Article Data: 6

Chemical Properties

• Boiling Point: 317.174 °C at 760 mmHg
• Flash Point: 138.39 °C
• Appearance: /
• Density: 1.03
• Storage Temp.: 2-8°C
• CAS DataBase Reference: 1,1-Biphenyl,4-ethyl-4-ethynyl-(9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1-Biphenyl,4-ethyl-4-ethynyl-(9CI)(477587-89-6)
• EPA Substance Registry System: 1,1-Biphenyl,4-ethyl-4-ethynyl-(9CI)(477587-89-6)

Safety Data

• Hazardous Substances Data: 477587-89-6(Hazardous Substances Data)

Usage

Chemical Properties

Light yellow solid

Upstream product

• 58743-79-6 1-bromo-4-(4'-ethylphenyl)benzene 
• 623-03-0 4-Cyanochlorobenzene 
• 63139-21-9 4-ethylphenylboronic acid 
• 92-91-1 biphenyl-4-acetaldehyde 
• 5707-44-8 4-ethylbiphenyl 

Relevant articles and documents

Synthesis method of 4-alkyl biphenylacetylene

The invention discloses a synthesis method of 4-alkyl biphenyl acetylene. The synthesis method comprises the following steps: carrying out catalytic hydrogenation reaction on 4-alkyl diketone to obtain 4-alkyl biphenyl; then reacting the 4-alkyl biphenyl with halogen to obtain 4-halogen-4 '-alkyl biphenyl; and allowing 4-halo-4 '-alkyl biphenyl and an ethynylation reagent to be subjected to a coupling reaction to obtain a compound shown in a formula (IV) under the action of alkali. The method creatively adopts a palladium catalyst and lewis acid combined catalytic system to carry out deoxidation reaction on 4-alkyl diketone, and has good selectivity and high yield; in addition, hydrogen is used as a hydrogen source, a byproduct is only water, and the method is environment-friendly.

Ferrocenyl palladacycles derived from unsymmetrical pincer-type ligands: Evidence of Pd(0) nanoparticle generation during the Suzuki-Miyaura reaction and applications in the direct arylation of thiazoles and isoxazoles

A new family of ferrocenyl-palladacycle complexes Pd(L1)Cl (Pd1) and Pd(L2)Cl (Pd2) were synthesized and characterized by UV-visible, IR, ESI-MS, and NMR spectral studies. The molecular structures of Pd1 and Pd2 were determined by X-ray crystallographic studies. Palladacycle catalyzed Suzuki-Miyaura cross-coupling reactions were investigated utilizing the derivatives of phenylboronic acids and substituted chlorobenzenes. Mechanistic investigation authenticated the generation of Pd(0) nanoparticles during the catalytic cycle and the nanoparticles were characterized by XPS, SEM and TEM analysis. Direct C-H arylation of thiazole and isoxazole derivatives employing these ferrocenyl-palladacycle complexes was examined. The reaction model for the arylation reaction implicating the in situ generation of Pd(0) nanoparticles was proposed.

Fluorescent dichroic dye containing 4-biphenyl acetylene acenaphtho[1,2-b]pyrazine-8,9-dinitrile, preparation method of fluorescent dichroic dye and application of fluorescent dichroic dye

The invention discloses a fluorescent dichroic dye containing 4-biphenyl acetylene acenaphtho[1,2-b]pyrazine-8,9-dinitrile, a preparation method of the fluorescent dichroic dye and application of the fluorescent dichroic dye. The 4-biphenyl acetylene acenaphtho[1,2-b]pyrazine-8,9-dinitrile is synthesized by using acenaphthequinone as a parent body and has novel structure, the raw materials are easy to obtain and the synthesis method is simple. The fluorescent dichroic dye having high fluorescent quantum production rate is obtained. The maximum emission wavelength of the dye is 563nm, the dye shows yellow fluorescence, and fluorescence quantum yield is high in a range of 0.43-0.51 to meet the practical application requirements. The dye V has a maximum red shift of 101 nm. The fluorescent dichroic dye has an excellent dichroic ratio and an ordered parameter in the liquid crystal E7. Absorption ordered parameter is 0.41-0.51, fluorescent ordered parameter is 0.34-0.39, and the fluorescent dichroic dye can thus be used for guest-host type liquid crystal display. Please see the specific structural formula in the description.