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Description
TCI C2246 4-Chloro-3-(trifluoromethyl)benzonitrile is a multiply substituted aromatic compound that serves as a fluorinated building block in organic synthesis. Its molecule carries three complementary functional groups on a single benzene ring: a nitrile group that acts as a transformation point toward amides, carboxylic acids, amines, and heterocyclic rings; a chlorine atom that behaves as a leaving group in nucleophilic aromatic substitution and cross-coupling reactions; and a trifluoromethyl group that contributes its characteristic electronic character. In the synthesis laboratory, this material becomes a starting framework that saves a considerable number of steps because its substitution pattern is already arranged from the outset.
The characteristic that makes this compound a frequent choice is its combination of strong electron-withdrawing groups. The trifluoromethyl and nitrile groups work together to activate the ring toward nucleophilic attack, so the chlorine atom positioned para relative to the CF3 group becomes far more reactive than that of ordinary chlorobenzene. The CF3 group itself is known to increase lipophilicity, metabolic stability, and the binding strength of derivative compounds toward biological targets, which makes it highly sought after in the design of drug molecules and active ingredients.
In Indonesian laboratories, this building block is typically handled in university research groups, pharmaceutical and agrochemical development units, and contract synthesis facilities that prepare fluorinated intermediates. Because the substitution pattern is fixed before the work begins, research teams can move directly into the transformation steps that matter to their target molecule rather than spending resources constructing the aromatic core. It is normally requested alongside coupling reagents and other fluorinated intermediates for medicinal chemistry and materials programmes.
Laboratory Applications
Nucleophilic aromatic substitution — the combined electron-withdrawing effect of the nitrile and trifluoromethyl groups activates the ring so the chlorine is displaced by nucleophiles far more readily than in ordinary chlorobenzene.
Cross-coupling chemistry — the chlorine atom serves as the reactive handle for coupling reactions, letting chemists attach new carbon fragments while the nitrile and CF3 groups remain in place on the ring.
Heterocycle construction — the nitrile group provides a direct entry point for building heterocyclic rings, a transformation that underpins many pharmaceutical and agrochemical scaffolds prepared in research laboratories.
Medicinal chemistry intermediate preparation — the trifluoromethyl group raises lipophilicity, metabolic stability, and target binding strength, properties routinely exploited when designing and optimising candidate drug molecules.
Nitrile functional group interconversion — the nitrile can be transformed into amides, carboxylic acids, or amines, giving one starting material access to several distinct downstream product families.
Specifications
Brand: TCI
CAS number: 1735-54-2
Category: Chemistry > Building Blocks > Fluorinated Building Blocks
Product code: C2246
Pack sizes: available in the standard research-scale pack sizes offered for this catalogue item
Storage: keep in a tightly closed container in a cool, dry, well-ventilated place
Handling and Storage
Store the container tightly closed in a cool, dry, well-ventilated area, away from heat, ignition sources, and incompatible materials such as strong oxidising agents, strong bases, and strong acids. Keep the material in its original supplier container or in an equivalent chemically resistant, clearly labelled vessel, and close it immediately after each use to limit exposure to moisture and air. Handle inside a fume hood using safety goggles, chemically resistant gloves, and a laboratory coat. Avoid inhalation of dust or vapour and contact with skin and eyes, and wash thoroughly after handling. Consult the manufacturer's safety data sheet before use, and dispose of residues and contaminated materials through the approved chemical waste route.
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