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 
• 5707-44-8 4-ethylbiphenyl 
• 92-91-1 biphenyl-4-acetaldehyde 
• 623-03-0 4-Cyanochlorobenzene 
• 63139-21-9 4-ethylphenylboronic acid 

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.

Containing 4 - (biphenyl ethynyl) - 1, 8 naphthalene imide liquid crystal compound, preparation method and application thereof

The invention discloses a liquid crystal compound containing 4-(biphenyl acetenyl)-1,8 naphthalimide, a preparing method and application. Solubility of molecules in mixed liquid crystal is improved by the compound, the linear structure of the molecules is

Fluorescent dichroic dye containing 3-(biphenylethynyl) acenaphtho [1,2-b] quinoxaline, preparation method of fluorescent dichroic dye and application of fluorescent dichroic dye

The invention discloses a fluorescent dichroic dye containing 3-(biphenylethynyl) acenaphtho [1,2-b] quinoxaline, a preparation method of the fluorescent dichroic dye and application of the fluorescent dichroic dye, and the type of fluorescent dichroic dye is enriched. The condensation of o-phenylenediamine on the biocarbonyl groups of acenaphthene broadens the conjugation system of a molecule, improves the rigidity and co-planarity of the molecule, and is beneficial to orientation in the main liquid crystal. The coupling of biphenyl acetylene groups to the biocarbonyl groups of the acenaphthene through a coupling reaction extends the conjugation linearity of the molecule. The fluorescent dichroic dye containing 3-(biphenylethynyl) acenaphtho [1,2-b] quinoxaline is novel in 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 introduction of different alkyl terminal chains in this type of fluorescent dichroic dye increases the solubility of the molecule in a liquid crystal, strengthens the linear structure of the molecule and improves the dichroism of the dye.