1-Nitro-4-[4-(trifluoromethyl)phenyl]benzene: Properties & Uses
1-Nitro-4-[4-(trifluoromethyl)phenyl]benzene: Properties & Uses
1-Nitro-4-[4-(trifluoromethyl)phenyl]benzene is a fluorinated nitroaromatic compound that serves as a versatile intermediate in pharmaceutical and materials chemistry research.
- IUPAC Name
- 1-Nitro-4-[4-(trifluoromethyl)phenyl]benzene
- SKU
- N186692
- Molecular Formula
- C13H8F3NO2
- Molecular Weight
- 267.20 g/mol
- Core Functional Groups
- Nitro group (–NO2) and trifluoromethyl group (–CF3) on a biphenyl scaffold
- Supplier
- Aladdin Scientific
Chemical Identity and Structure
1-Nitro-4-[4-(trifluoromethyl)phenyl]benzene (Aladdin SKU N186692; molecular formula C13H8F3NO2; MW ≈ 267.20 g/mol) belongs to the class of fluorinated nitrobiaryl compounds. Its biphenyl core carries two strongly electron-withdrawing substituents in a para,para′-arrangement: a nitro group (–NO2) and a trifluoromethyl group (–CF3). This substitution pattern renders both aromatic rings highly electron-deficient, significantly influencing the compound's reactivity profile and physical properties such as lipophilicity and metabolic stability.
The –CF3 group is renowned for enhancing lipophilicity, improving membrane permeability, and conferring resistance to oxidative metabolism, making it a highly prized motif in medicinal chemistry. The –NO2 group is a classic activating group for nucleophilic aromatic substitution (SNAr) and a reducible handle for amine synthesis.
Research Applications
The dual electron-withdrawing character of 1-Nitro-4-[4-(trifluoromethyl)phenyl]benzene makes it useful across several research domains:
- Pharmaceutical intermediate synthesis: The nitro group can be selectively reduced to a primary amine using catalytic hydrogenation or chemical reductants (e.g., iron/acetic acid, SnCl2), generating 4′-(trifluoromethyl)-[1,1′-biphenyl]-4-amine — a scaffold present in numerous drug candidates and agrochemicals.
- Nucleophilic aromatic substitution (SNAr): The strongly activated aromatic ring bearing the nitro group can participate in SNAr reactions with amines, alkoxides, and thiolates, enabling rapid diversification of the biphenyl scaffold.
- Materials science: Fluorinated nitroaromatics are employed as electron-accepting components in organic semiconductors, liquid crystals, and charge-transfer complexes due to their low-lying LUMO energies.
- Cross-coupling chemistry: The compound can serve as a model substrate to evaluate catalytic systems for Suzuki-Miyaura, Buchwald-Hartwig, and related transition-metal-catalyzed transformations.
Handling, Storage, and Safety Considerations
As with all nitroaromatic compounds, appropriate laboratory safety precautions should be observed when working with 1-Nitro-4-[4-(trifluoromethyl)phenyl]benzene. Researchers should consult the Safety Data Sheet (SDS) supplied by Aladdin Scientific prior to use. General recommendations include:
- Personal protective equipment (PPE): Wear appropriate gloves, safety goggles, and a laboratory coat. Work in a well-ventilated fume hood.
- Storage: Store in a tightly sealed container under cool, dry conditions, away from strong reducing agents and open flames. Specific storage temperature should be confirmed from the product SDS.
- Waste disposal: Dispose of in accordance with local and institutional regulations for halogenated and nitro-containing organic waste.
Researchers should be aware that aromatic nitro compounds may present irritation hazards and should be handled accordingly. Always refer to the current SDS for authoritative hazard information.
Ordering and Specifications
1-Nitro-4-[4-(trifluoromethyl)phenyl]benzene is available from Aladdin Scientific under SKU N186692. When placing an order, researchers and procurement teams should note:
- Purity grade: Confirm the purity specification on the current product page or certificate of analysis (CoA) to ensure suitability for your application.
- Available quantities: Multiple pack sizes may be available; contact Aladdin Scientific for bulk or custom quantity enquiries.
- Documentation: A CoA, SDS, and NMR/HPLC data are typically available upon request for quality-critical applications.
- Lead time and shipping: Consult the Aladdin Scientific website or your regional representative for current stock status and delivery timelines.
Frequently asked questions
What is the molecular formula and molecular weight of 1-Nitro-4-[4-(trifluoromethyl)phenyl]benzene?
The molecular formula is C13H8F3NO2 and the molecular weight is approximately 267.20 g/mol. These values are consistent with a biphenyl scaffold bearing one nitro and one trifluoromethyl substituent.
How can the nitro group in this compound be reduced to an amine for downstream synthesis?
The nitro group can be reduced to a primary amine by catalytic hydrogenation (e.g., H2 over Pd/C) or by chemical reduction using reagents such as iron powder in acetic acid or tin(II) chloride in ethanol. The choice of method depends on functional group compatibility and scale. Always optimize conditions on a small scale before scaling up.
What precautions should be taken when storing 1-Nitro-4-[4-(trifluoromethyl)phenyl]benzene?
The compound should be stored in a tightly sealed container under cool and dry conditions, away from strong reducing agents, heat sources, and open flames. Consult the Aladdin Scientific SDS for the specific recommended storage temperature and any additional hazard precautions before handling.
Is 1-Nitro-4-[4-(trifluoromethyl)phenyl]benzene suitable as a substrate for Suzuki-Miyaura cross-coupling reactions?
As an electron-deficient nitrobiaryl compound, it can serve as a model or reference substrate to benchmark palladium-catalyzed cross-coupling methodologies. However, researchers should note that it already contains a pre-formed biphenyl bond; its primary role is typically as an intermediate or reference standard rather than a direct coupling partner unless a halogenated analogue is targeted.
References
- March, J. Advanced Organic Chemistry: Reactions, Mechanisms, and Structure. Wiley-Interscience. General reference for nucleophilic aromatic substitution and nitro group reduction chemistry.
- Müller, K.; Faeh, C.; Diederich, F. Fluorine in Pharmaceuticals: Looking Beyond Intuition. Science, 2007, 317, 1881–1886. Reviews the role of fluorine and CF3 groups in drug design. doi:10.1126/science.1131943
- Aladdin Scientific product page for 1-Nitro-4-[4-(trifluoromethyl)phenyl]benzene, SKU N186692.
Products are supplied for research and development use only. Not for use in humans, animals, diagnosis, or therapy.
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