134450-56-9

Basic information

• Product Name: 4,5-Difluorophthalonitrile
• Synonyms: 4,5-Difluorophthalonitrile;1,2-Dicyano-4,5-difluorobenzene;4,5-Difluorophthlonitrile
• CAS NO: 134450-56-9
• Molecular Formula: C₈H₂F₂N₂
• Molecular Weight: 164.1116864
• Mol File: 134450-56-9.mol
• Article Data: 4

Chemical Properties

• Melting Point: 112.0 to 116.0 °C
• Boiling Point: 305.3±42.0 °C(Predicted)
• Appearance: /
• Density: 1.37±0.1 g/cm3(Predicted)
• Storage Temp.: Inert atmosphere,Room Temperature
• CAS DataBase Reference: 4,5-Difluorophthalonitrile(CAS DataBase Reference)
• NIST Chemistry Reference: 4,5-Difluorophthalonitrile(134450-56-9)
• EPA Substance Registry System: 4,5-Difluorophthalonitrile(134450-56-9)

Safety Data

• RIDADR: 3439
• HazardClass: 6.1
• PackingGroup: III
• Hazardous Substances Data: 134450-56-9(Hazardous Substances Data)

Usage

Description

4,5-Difluorophthalonitrile is an organic compound with the molecular formula C8H3F2N. It is characterized by the presence of two fluorine atoms at the 4 and 5 positions of the phthalonitrile molecule, which is a derivative of phthalonitrile. 4,5-Difluorophthalonitrile is known for its potential applications in various industries due to its unique chemical properties.

Uses

Used in the Chemical Industry:
4,5-Difluorophthalonitrile is used as an intermediate in the synthesis of various organic compounds, particularly in the preparation of benzo[g]pteridine. This application is significant because benzo[g]pteridine serves as an organic electron transfer mediator, which plays a crucial role in facilitating electron transfer processes in chemical reactions and materials science.
In the context of the provided materials, 4,5-Difluorophthalonitrile is specifically utilized in the preparation of benzo[g]pteridine, which is an organic electron transfer mediator. This application highlights the importance of 4,5-Difluorophthalonitrile in the chemical industry, where it contributes to the development of novel materials and compounds with potential applications in various fields, such as electronics, energy storage, and pharmaceuticals.

InChI:InChI=1S/C8H2F2N2/c9-7-1-5(3-11)6(4-12)2-8(7)10/h1-2H

Upstream product

• 557-21-1 zinc(II) cyanide 
• 64695-78-9 1,2-difluoro-4,5-dibromobenzene 

Downstream Products

• 18959-31-4 4,5-difluorophthalic acid 
• 1416881-50-9 1,2‐bis(carbazol‐9‐yl)‐4,5‐dicyanobenzene 
• 1259331-74-2 4,5-di(2,3,4,6-tetra-O-acetyl-α-D-galactopyranosyl)phthalonitrile 
• 1259331-72-0 4,5-di(2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl)phthalonitrile 
• 1259331-73-1 4,5-di(2,3,4,6-tetra-O-acetyl-1-thio-β-D-glucopyranosyl)phthalonitrile 

Relevant articles and documents

Preparation method of 4, 5-difluorophthalic acid

The invention discloses a preparation method of 4, 5-difluorophthalic acid. The specific method comprises the following steps: S1: synthesis of 4, 5-difluoro-1, 2-phthalonitrile: adding 4, 5-difluoro-1, 2-dihalobenzene and polymethylhydrosiloxane into a reaction container, stirring and dissolving with N, N-dimethylacetamide, carrying out reaction, cooling after the reaction is finished, adding tri(dibenzylideneacetone)dipalladium and 1, 1 '-bis (diphenylphosphine) ferrocene under the protection of nitrogen, slowly adding zinc cyanide for reaction, cooling after the reaction is finished, adding water, adjusting the pH to 8 by using a sodium bicarbonate solution under vigorous stirring, stirring for 2 hours, standing, filtering, washing, and eluting and purifying by using an ethyl acetate mixed solvent of petroleum ether to obtain an off-white solid intermediate 4, 5-difluoro-1, 2-dicyanobenzene; and S2, synthesis of 4, 5-difluoro-1, 2phthalic acid. The process is safe, efficient, easy to operate, low in equipment requirement, low in raw material cost and easy for industrial production.

DOPANT FOR ORGANIC OPTOELECTRONIC DEVICE, ORGANIC OPTOELECTRONIC DEVICE, AND DISPLAY DEVICE

The present invention relates to: a dopant for an organic optoelectronic device, represented by chemical formula 1; an organic optoelectronic device including the dopant; and a display device.