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• Solvents and Organic Chemicals Organic Compounds Organoheterocyclic compounds Pyridines and derivatives Pyridine carboxaldehydes
• Solvents and Organic Chemicals Organic Compounds cyanides/Cyanides

5-formylpyridine-3-carbonitrile (CAS No. 70416-53-4): A Key Intermediate in Modern Pharmaceutical and Chemical Research

5-formylpyridine-3-carbonitrile, identified by the Chemical Abstracts Service registry number CAS No. 70416-53-4, is a highly versatile and synthetically valuable compound that has garnered significant attention in the fields of pharmaceutical chemistry, agrochemical development, and material science. Its unique structural framework, featuring both a formyl group and a nitrile functionality, makes it an indispensable intermediate for the synthesis of a wide array of biologically active molecules. This article delves into the compound’s chemical properties, synthetic methodologies, and its emerging applications, particularly in the context of recent advancements in medicinal chemistry.

The molecular structure of 5-formylpyridine-3-carbonitrile consists of a pyridine ring substituted at the 3-position with a nitrile group (–CN) and at the 5-position with a formyl group (–CHO). This bifunctional nature allows for diverse chemical transformations, enabling its incorporation into complex molecular architectures through condensation, nucleophilic addition, and cyclization reactions. The compound’s electron-withdrawing nitrile group enhances its reactivity, making it an excellent precursor for further functionalization. Additionally, the formyl group serves as a potent aldehyde moiety, facilitating Michael additions, aldol reactions, and cross-coupling processes.

In recent years, 5-formylpyridine-3-carbonitrile has been extensively explored as a key building block in the synthesis of pharmacologically relevant compounds. Its applications span across various therapeutic areas, including antiviral, anticancer, anti-inflammatory, and antimicrobial agents. For instance, studies have demonstrated its utility in constructing pyridine-based heterocycles that exhibit potent inhibitory activity against enzymes such as kinases and proteases. These enzymes are often implicated in disease pathogenesis, making them attractive targets for drug discovery.

One notable application of 5-formylpyridine-3-carbonitrile is in the development of novel antiviral agents. The pyridine scaffold is a common structural motif in many antiviral drugs due to its ability to interact favorably with biological targets. Researchers have leveraged the reactivity of 5-formylpyridine-3-carbonitrile to design inhibitors targeting viral proteases and polymerases. These inhibitors have shown promising activity against various viral strains, including those responsible for influenza and HIV infections. The formyl group’s ability to engage in hydrogen bonding and dipole-dipole interactions with amino acid residues in viral proteins enhances binding affinity.

Furthermore, 5-formylpyridine-3-carbonitrile has found utility in the synthesis of agrochemicals. Its structural features make it an effective precursor for developing novel pesticides and herbicides that exhibit improved efficacy and environmental safety. For example, derivatives of 5-formylpyridine-3-carbonitrile have been investigated as inhibitors of plant growth regulators, offering potential benefits in sustainable agriculture. The nitrile group’s stability under various environmental conditions ensures that these agrochemicals remain active over prolonged periods.

The synthetic routes to 5-formylpyridine-3-carbonitrile are well-documented and can be tailored to yield high-purity material suitable for industrial applications. One common approach involves the formylation of 3-cyanopyridine using Vilsmeier-Haack conditions or other formylation methodologies. Alternatively, palladium-catalyzed cross-coupling reactions can be employed to introduce the formyl group selectively at the desired position on the pyridine ring. These synthetic strategies have been optimized to minimize side reactions and maximize yield.

Recent advancements in catalytic chemistry have further expanded the synthetic possibilities of 5-formylpyridine-3-carbonitrile. Transition-metal-catalyzed reactions, such as Buchwald-Hartwig amination and Heck coupling, have enabled the introduction of various substituents onto the pyridine ring without compromising regioselectivity. These methods have opened new avenues for constructing complex derivatives with tailored biological properties.

The spectroscopic and analytical characterization of 5-formylpyridine-3-carbonitrile is critical for ensuring its purity and identity before use in downstream applications. High-resolution nuclear magnetic resonance (NMR) spectroscopy provides detailed information about its molecular structure, while mass spectrometry (MS) confirms its molecular weight. Infrared (IR) spectroscopy is used to verify the presence of characteristic functional groups such as aldehydes (C=O stretch around 1700 cm?1) and nitriles (C≡N stretch around 2220 cm?1). Additionally, high-performance liquid chromatography (HPLC) or gas chromatography-mass spectrometry (GC-MS) can be employed for purity assessment.

The growing interest in green chemistry has prompted researchers to explore sustainable synthetic routes for 5-formylpyridine-3-carbonitrile. Catalytic methods that minimize waste generation and energy consumption are being prioritized over traditional multi-step approaches. Solvent-free reactions and microwave-assisted synthesis have also been investigated as means to improve reaction efficiency while reducing environmental impact.

In conclusion,5-formylpyridine-3-carbonitrile (CAS No. 70416-53-4) represents a cornerstone intermediate in modern chemical synthesis with far-reaching implications across pharmaceuticals and agrochemicals. Its unique structural attributes enable diverse functionalization strategies, making it an invaluable tool for drug discovery and material development. As research continues to uncover new applications for this compound,5-formylpyridine-3-carbonitrile is poised to play an increasingly significant role in addressing global challenges in medicine and agriculture.

• 851048-54-9(4-(5-Cyanopyridin-3-yl)benzoic acid)
• 887579-62-6(5-cyanopyridine-3-carboxylic acid)
• 500-22-1(pyridine-3-carbaldehyde)
• 42885-14-3(5-methylpyridine-3-carbonitrile)
• 1195-58-0(3,5-Pyridinedicarbonitrile)
• 1211582-43-2(3-formylpyridine-4-carbonitrile)
• 100910-66-5(5-methylpyridine-3-carbaldehyde)
• 89793-78-2(5-Cyanonicotinamide)
• 258854-80-7(2,4,5,6-tetradeuteriopyridine-3-carbaldehyde)
• 135450-74-7(3-pyridinecarbonitrile,5-acetyl-)