132123-39-8

Basic information

• Product Name: 4''-(TRANS-4-PROPYLCYCLOHEXYL)-3,4,5-TRIFLUORO-BIPHENYL
• Synonyms: 4''-(TRANS-4-PROPYLCYCLOHEXYL)-3,4,5-TRIFLUORO-BIPHENYL;3,4,5-Trifluoro-4`-(4-propyl-cyclohexyl)biphenyl;3,4,5-Trifluoro-4'-(trans-4-propylcyclohexyl)- 1,1'-biphenyl;[3,4,5-trifluoro-4-(4-propylcyclohexyl)cyclohexa-1,5-dien-1-yl]benzene;trans-3,4,5-Trifluoro-4'-(4-n-propylcyclohexyl)biphenyl, 99%;trans-3,4,5-Trifluoro-4'-(4-propylcyclohexyl)biphenyl;3,4,5-Trifluoro-4'-(trans-4-propylcyclohexyl)biphenyl;3,4,5-Trifluoro-4'-((1s,4r)-4-propylcyclohexyl)biphenyl
• CAS NO: 132123-39-8
• Molecular Formula: C21H23F3
• Molecular Weight: 332.407
• Mol File: 132123-39-8.mol

Chemical Properties

• Melting Point: 40.0 to 44.0 °C
• Boiling Point: 402.5 °C at 760 mmHg
• Flash Point: 228.4 °C
• Appearance: /
• Density: 1.098 g/cm³
• Vapor Pressure: 0-0.007Pa at 20-50℃
• Storage Temp.: Sealed in dry,Room Temperature
• Water Solubility: Slightly soluble in water.
• CAS DataBase Reference: 4''-(TRANS-4-PROPYLCYCLOHEXYL)-3,4,5-TRIFLUORO-BIPHENYL(CAS DataBase Reference)
• NIST Chemistry Reference: 4''-(TRANS-4-PROPYLCYCLOHEXYL)-3,4,5-TRIFLUORO-BIPHENYL(132123-39-8)
• EPA Substance Registry System: 4''-(TRANS-4-PROPYLCYCLOHEXYL)-3,4,5-TRIFLUORO-BIPHENYL(132123-39-8)

Safety Data

• Hazardous Substances Data: 132123-39-8(Hazardous Substances Data)

Usage

Chemical Properties

White powder

Uses

It is employed as a pharmaceutical intermediate.

Upstream product

• 86579-53-5 1-(trans-4-n-propylcyclohexyl)-4-bromobenzene 
• 138526-69-9 3,4,5-trifluoro-1-bromobenzene 
• 143418-49-9 3,4,5-trifluorophenylboronic acid 
• 86579-53-5 4-(4-propylcyclohexyl)-1-bromobenzene 

Relevant articles and documents

Suzuki cross-coupling reactions of aryl chlorides using [Cl 2Pd(COD)]/piperazine derivative under microwave conditions

A new strategy to significantly improve the efficiency of Suzuki reactions was achieved under microwave irradiation. [Cl2Pd(COD)]/piperazine derivative 1 catalyzed aryl chlorides with phenylboronic acid in methanol (50%) affording excellent yields under aerobic conditions. Application of this strategy to the synthesis of liquid crystal material is also described.

Efficient synthesis of fluorinated biphenyl derivatives via Pd-catalyzed Suzuki coupling reactions in aqueous solvents at room temperature

A variety of fluorinated biphenyl derivatives were obtained in good yields in aqueous solvents at room temperature by Suzuki coupling reaction of aryl bromides and aryl boronic acid in the presence of high activity catalyst - some air-stable hemilabile PO

An aerobic and very fast Pd/C-catalyzed ligand-free and aqueous Suzuki reaction under mild conditions

An aerobic, ligand-free Suzuki reaction catalyzed by Pd/C in aqueous media has been developed. This method is a very simple, efficient and mild protocol for the cross-coupling of aryl bromides with arylboronic acids, and the reactions proceeded smoothly in excellent yields within short reaction times. Control experiments demonstrated that the Pd/C-catalyzed Suzuki reaction was much quicker when performed in air or oxygen than in nitrogen. Furthermore, this protocol could be used for the synthesis of fluorinated liquid-crystalline compounds. The Pd/C catalyst could be recovered and recycled efficiently at least ten times without significant loss of catalytic activity. Copyright

Trifluorinated liquid crystals for TFT displays

3, 4, 5-tri-fluorobenzene derivatives with different core structures have been synthesized and their physical properties have been determined. Most of the compounds are nematic with broad existence regions. The materials have large dielectric anisotropy, low viscosity, low optical anisotropy and very good voltage holding ratio and high chemical stability and are valuable components for mixtures to be used in TFT displays. The good voltage holding ratio of the compounds is related to their high electrical resistivity. In order to reproduce the dependence of the resistivity on the dielectric constant, we derived a general formula. Its derivation is based on the interaction of the impurity ions with the induced and permanent dipoles of the liquid crystal molecules. We are able to show, that ion/ion interactions in highly purified liquid crystals may be neglected.