78757-46-7

Upstream product

• 589-29-7 p-xylylene glycol 
• 106-42-3 para-xylene 
• 623-24-5 1,4-bis(bromomethyl)benzene 

Downstream Products

• 763145-62-6 1,4-bis(bromofluoromethyl)benzene 

Relevant academic research and scientific papers

Interbenzylic 19F,19F Spin-Spin Coupling Constants in Bis(fluoromethyl)arenes

Five- to eleven-bond F,F spin coupling is observed in bis(fluoromethyl)arenes.According to INDO MO calculations, these couplings are transmitted mainly via the aromatic ?-system.The low preference of 1,4-(CH2F)2-benzene for the conformation in which the C

Electrochemical fluorination using halogen mediators in ionic liquid hydrogen fluoride salt

In order to utilize ammomium halides (Et4NX, X=Cl, Br, I) as halogenmediator for electrocatalytic fluorination, cyclic voltammetry measurements of the halides were investigated. The catalytic current of the halides in the presence of a dithioacatal compound was observed and the macro-scale electrolysis of dithioacetals using the halogen mediator was also carried out in ionic liquid hydrogen fluoride (HF) salt to give the corresponding fluorinated products in excellent yields. The recycle use of the halogen mediator in the electrochemical fluorination was successfully demonstrated. More inexpensive halides such as potassium bromide and potassium iodide could be soluble in HF salt and worked well as halogen mediator for the electrocatalytic fluorination.

Practical and general method for direct synthesis of alkyl fluorides from alcohols under mild conditions

A variety of alcohols were treated with Ph 3P and KF in CCl 4-DMF at room temperature to afford the corresponding fluorides in very good yields. Springer-Verlag 2005.

Novel electroluminescent polymers with fluoro groups in vinylene units

New electroluminescent polymers with fluoro groups in vinylene units, poly(p-phenylen-edifluorovinylene) (PPDFV) and poly(2-dimethyloctylsilyl-p-phenylenedifluorovinylene) (DMOS-PPDFV), have been synthesized by GILCH polymerization. These polymers have been used as the electroluminescent (EL) layers in double-layer light-emitting diodes (LEDs) (ITO/PEDOT/polymer/Al). PPDFV shows photoluminescence around λ max = 580 nm (exciting wavelength, 410 nm) and yellow electroluminescence around λmax = 565 nm. DMOS-PPDFV shows PL around λmax = 495 nm and green EL around λ max = 540 nm. The current-voltage-luminance (I-V-L) characteristics of the polymers show turn-on voltages of 3.0 V approximately. Two fluoro groups were introduced on every vinylene units of poly(p-phenylenevinylene) (PPV) and poly(2-dimethyloctylsilyl-1,4-phenylenevinylene) (DMOS-PPV) to give PPDFV and DMOS-PPDFV in an attempt to increase the electron affinity of the parent polymer. It was found that the efficiency of PLED of DMOS-PPDFV was about 7 times higher than that of DMOS-PPV.