2,4-Difluorobenzonitrile

2,4-Difluorobenzonitrile

C₇H₃F₂N

CAS NO.3939-09-1

2,4-Difluorobenzonitrile (DFBN) is a widely used aromatic compound in organic synthesis due to its unique chemical reactivity, high stability, and broad application scope. It is often employed as a key building block to synthesize a variety of organic compounds, including pharmaceuticals, agrochemicals, dyes, and polymers.

DFBN possesses two fluorine atoms at the ortho positions of the benzene ring, which makes it a highly electron-withdrawing group (EWG). This unique EWG – fluorine – can enhance the electrophilicity of the benzene ring and increase the reaction rate in various electrophilic aromatic substitution reactions. On the other hand, the cyano group on the other side of the benzene ring is also a common EWG that can increase the acidity of the hydrogen atoms adjacent to it. As a result, DFBN has unprecedented chemical reactivity and versatility for use as a building block in creating advanced organic compounds.

The incorporation of fluorine atoms into organic compounds provides unique physical and chemical properties to the resulting molecules, such as increased lipophilicity and bioavailability, improved metabolic stability, and lower toxicity. Furthermore, the presence of fluorine atoms can affect the physical properties of the materials, such as their melting points, boiling points, and solubility.

DFBN is often synthesized by reaction between 2,4-difluorobenzoyl chloride and sodium cyanide, via a nucleophilic substitution reaction. The resulting DFBN molecule can then undergo various chemical reactions, such as Friedel-Crafts acylation, substitution reaction with nucleophiles, oxidation, and reduction, to create diverse organic molecules.

DFBN is a valuable and versatile building block in organic synthesis, owing to its electron-withdrawing properties, unique chemical reactivity, and the physical properties it imparts. It is widely used in developing a variety of organic compounds with enhanced efficacy and safety profiles, including drugs, agrochemicals, dyes, and polymers. Further research and development on DFBN and its derivatives could lead to novel commercial applications and breakthroughs in organic chemistry.

Packing, Storage, Handling and Transportation

2,4-Difluorobenzonitrile should be sealed in dry place at room temperature.

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