技术文章

6-(Bromomethyl)nicotinonitrile: Properties, Uses & Handling

6-(Bromomethyl)nicotinonitrile is a versatile heterocyclic building block featuring a reactive benzylic bromide and a nitrile-substituted pyridine ring, making it a valuable intermediate in medicinal chemistry and drug discovery research.

CAS Number
Not specified in source material — see product datasheet (B587456)
Molecular Formula
C7H5BrN2
Molecular Weight
197.03 g/mol
Key Functional Groups
Benzylic bromide, nitrile (CN), pyridine ring
Primary Application
Alkylating agent and synthetic intermediate in medicinal and heterocyclic chemistry
Storage Conditions
Store in a cool, dry, well-ventilated area away from moisture and light (see SDS)

Chemical Identity and Structure

6-(Bromomethyl)nicotinonitrile is a pyridine-based compound in which a bromomethyl (–CH2Br) group is located at the 2-position of the pyridine ring, while a nitrile (–CN) group is positioned at the 5-position. This arrangement places two distinct and synthetically useful functional groups on the same aromatic scaffold. The molecular formula is C7H5BrN2, corresponding to a molecular weight of approximately 197.03 g/mol. The compound is classified as a benzylic bromide, which confers high electrophilic reactivity at the methylene carbon, facilitating nucleophilic substitution reactions under mild conditions. The nitrile group simultaneously offers opportunities for further elaboration, including hydrolysis to amides or carboxylic acids, reduction to primary amines, and participation in cycloaddition chemistry.

Synthetic Applications and Reactivity

The primary utility of 6-(Bromomethyl)nicotinonitrile lies in its role as an alkylating agent and versatile building block in synthetic organic and medicinal chemistry. The reactive benzylic bromide undergoes smooth SN2 reactions with a wide range of nucleophiles, including amines, thiols, alcohols, malonate anions, and organometallic species. This makes it particularly well-suited for the synthesis of N-alkylated, S-alkylated, or C-alkylated products bearing the 5-cyanopyridin-2-yl motif.

The electron-withdrawing pyridine nitrogen and the nitrile group together activate the ring toward nucleophilic aromatic substitution at appropriate positions, providing additional retrosynthetic flexibility. The nitrile group itself can serve as a handle for Knoevenagel condensation, Pinner reaction, or metal-catalyzed cross-coupling after appropriate activation. In fragment-based drug discovery, the nicotinonitrile scaffold is a recognized pharmacophore present in several bioactive molecules, and 6-(Bromomethyl)nicotinonitrile enables efficient introduction of this scaffold into target compounds.

Safety, Handling, and Storage

As a reactive benzylic bromide, 6-(Bromomethyl)nicotinonitrile should be treated with appropriate precautions. Benzylic bromides are potent lachrymators and skin, eye, and respiratory irritants; contact should be avoided. All manipulations should be performed in a well-ventilated fume hood with appropriate personal protective equipment (PPE), including chemical-resistant gloves, safety goggles, and a laboratory coat.

The compound should be stored in a tightly sealed container in a cool, dry, and dark environment, away from moisture, oxidising agents, and strong bases or nucleophiles that could cause premature reaction. Refer to the Safety Data Sheet (SDS) provided by Aladdin Scientific for specific hazard classifications, first-aid measures, disposal procedures, and transport regulations before use. Waste disposal must comply with local and national regulations governing halogenated organic compounds.

Ordering and Product Information

6-(Bromomethyl)nicotinonitrile is available from Aladdin Scientific under SKU B587456. Researchers are encouraged to consult the product datasheet for confirmed specifications, including purity grade, CAS number, and available pack sizes. For bulk quantities, custom synthesis inquiries, or technical assistance, please contact the Aladdin Scientific customer support team. Aladdin Scientific is committed to providing research-grade reagents that meet the rigorous standards demanded by modern synthetic and medicinal chemistry research.

Frequently asked questions

What nucleophiles react efficiently with 6-(Bromomethyl)nicotinonitrile?

The reactive benzylic bromide of 6-(Bromomethyl)nicotinonitrile undergoes efficient S N2 alkylation with primary and secondary amines, thiols, alkoxide anions, malonate-type carbanions, and organometallic reagents under mild conditions. The choice of solvent (e.g., DMF, acetonitrile, THF) and base can be optimised depending on the nucleophile employed.

How should 6-(Bromomethyl)nicotinonitrile be stored to ensure stability?

The compound should be stored in a tightly sealed container under cool, dry, and dark conditions, away from moisture, oxidising agents, and nucleophilic or basic species that could trigger undesired reaction. Refrigeration at 2–8 °C is generally advisable for long-term storage, but confirm specific recommendations on the Aladdin Scientific product datasheet or SDS.

What further transformations of the nitrile group are possible?

The nitrile (–CN) group in 6-(Bromomethyl)nicotinonitrile can be hydrolysed to a primary amide or carboxylic acid under acidic or basic aqueous conditions, reduced to a primary amine using LiAlH4 or catalytic hydrogenation, or converted to a tetrazole via [3+2] cycloaddition with azide sources. These transformations allow the synthesis of a diverse array of nicotinonitrile-derived pharmacophores and functional intermediates.

Is 6-(Bromomethyl)nicotinonitrile suitable for use in automated synthesis or high-throughput screening library synthesis?

Yes, the high electrophilic reactivity and predictable S N2 reactivity of the benzylic bromide, combined with the additional handle offered by the nitrile group, make 6-(Bromomethyl)nicotinonitrile well-suited for parallel synthesis workflows and the construction of compound libraries for high-throughput biological screening. Researchers should validate reaction conditions and purity specifications before deploying it in automated platforms.

References

  1. Aladdin Scientific product listing: 6-(Bromomethyl)nicotinonitrile, SKU B587456. Internal reference BD227372.
  2. March, J. Advanced Organic Chemistry: Reactions, Mechanisms, and Structure. Wiley-Interscience. (General reference for S N2 reactivity of benzylic halides and nitrile chemistry.)
  3. Kappe, C. O.; Dallinger, D.; Murphree, S. S. Practical Microwave Synthesis for Organic Chemists. Wiley-VCH, 2009. (Background on heterocyclic building blocks in medicinal chemistry.)

Products are supplied for research and development use only. Not for use in humans, animals, diagnosis, or therapy.

目录: 技术文章

Da — 若无特别说明,分子量单位默认为道尔顿。   Mw — 重均分子量。   Mn — 数均分子量。

产品仅供科研与开发使用,不用于人体、动物、诊断或治疗。

引用本文

阿拉丁科学.《6-(Bromomethyl)nicotinonitrile: Properties, Uses & Handling》. 阿拉丁知识库,更新于 2026年10月4日。 https://www.aladdin-e.com/zh_cn/faqs/6-bromomethyl-nicotinonitrile-properties-uses-handling-en.html
这篇文章对您有帮助吗? Yes No 有 1 人觉得有帮助