技术文章

5-Bromo-1,1,1-trifluoropentane: Properties, Uses & Handling

5-Bromo-1,1,1-trifluoropentane is a fluorinated alkyl bromide building block widely valued in organic synthesis for its dual reactive handles—a terminal trifluoromethyl group and a primary alkyl bromide—enabling versatile C–C and C–heteroatom bond-forming reactions in medicinal and materials chemistry.

CAS Number
407-97-6
Molecular Formula
C5H8BrF3
Molecular Weight
205.02 g/mol
SKU
B698162
Functional Groups
Primary alkyl bromide; trifluoromethyl (CF3)
Typical Application
Fluorinated chain elongation and alkylation in organic synthesis

Chemical Identity and Structure

5-Bromo-1,1,1-trifluoropentane (CAS 407-97-6; SKU B698162) is a linear five-carbon alkyl halide bearing a trifluoromethyl group at C-1 and a bromine leaving group at C-5. Its molecular formula is C5H8BrF3 with a molecular weight of approximately 205.02 g/mol. The strong electron-withdrawing character of the CF3 group imparts distinctive physicochemical properties, including elevated lipophilicity relative to the non-fluorinated analogue and metabolic stability relevant to pharmaceutical design. The primary alkyl bromide moiety at the opposite terminus provides a readily accessible electrophilic site for nucleophilic substitution (SN2) reactions.

Synthetic Applications

5-Bromo-1,1,1-trifluoropentane serves as a versatile electrophilic fluorinated linker in modern organic synthesis. Its primary alkyl bromide reacts efficiently with a broad range of nucleophiles including amines, thiols, alcohols, malonates, and organometallic species, allowing the introduction of a four-methylene trifluoromethyl chain into complex molecules. This makes it particularly valuable in:

  • Medicinal chemistry: Installation of CF3-terminated alkyl chains to modulate pharmacokinetic properties such as membrane permeability and metabolic resistance.
  • Materials science: Synthesis of fluorinated polymers, surfactants, and liquid-crystal components requiring defined fluorocarbon segments.
  • Agrochemical research: Preparation of fluorinated intermediates for bioactive molecule libraries.

The bifunctional nature of the molecule—electrophilic bromide plus electron-withdrawing CF3—enables sequential derivatization strategies in multi-step synthesis programs.

Safety and Handling Guidelines

As with all low-molecular-weight alkyl bromides, 5-Bromo-1,1,1-trifluoropentane should be handled with appropriate laboratory precautions:

  • Personal protective equipment: Chemical-resistant gloves (nitrile or neoprene), safety goggles, and a laboratory coat are recommended. Work in a well-ventilated fume hood.
  • Storage: Store in a tightly sealed container under inert atmosphere (nitrogen or argon) in a cool, dry location away from strong oxidizers, bases, and ignition sources. Refrigerated storage (2–8 °C) is advisable to maintain long-term stability.
  • Waste disposal: Dispose of as halogenated organic waste in accordance with local institutional and governmental regulations.
  • First aid: In case of skin or eye contact, flush immediately with copious water for at least 15 minutes and seek medical attention. If inhaled, move to fresh air.

Consult the Safety Data Sheet (SDS) supplied by Aladdin Scientific for complete hazard, transport, and regulatory information before use.

Reagent Specifications and Quality

Aladdin Scientific offers 5-Bromo-1,1,1-trifluoropentane (SKU B698162) as a research-grade reagent. Researchers and procurement officers should note the following when evaluating suitability:

  • Purity: Research-grade material is typically analyzed by GC and/or NMR. Confirm the certificate of analysis (CoA) for the specific lot before use in sensitive applications.
  • Packaging: Available in multiple quantities to suit exploratory screening through scale-up synthesis. Contact Aladdin Scientific for bulk pricing and custom pack sizes.
  • Lot traceability: Each shipment is accompanied by a CoA detailing purity, appearance, and analytical data for full traceability in regulated environments.

For the most current specifications, availability, and pricing, refer to the Aladdin Scientific product page for SKU B698162.

Frequently asked questions

What is the CAS number for 5-Bromo-1,1,1-trifluoropentane?

The CAS registry number for 5-Bromo-1,1,1-trifluoropentane is 407-97-6. Aladdin Scientific lists this compound under SKU B698162.

What nucleophiles react readily with 5-Bromo-1,1,1-trifluoropentane?

The primary alkyl bromide in 5-Bromo-1,1,1-trifluoropentane undergoes efficient Sₙ2 reactions with nitrogen, oxygen, and sulfur nucleophiles such as amines, alcoholates, and thiolates, as well as carbon nucleophiles including organometallic reagents (Grignard, organolithium) and stabilized carbanions. Reaction conditions should be optimized for each nucleophile class.

How should 5-Bromo-1,1,1-trifluoropentane be stored to maintain stability?

It is recommended to store 5-Bromo-1,1,1-trifluoropentane in a tightly sealed container under an inert atmosphere (nitrogen or argon) at 2–8 °C, away from moisture, strong oxidizers, and bases. These conditions minimize hydrolysis of the alkyl bromide and ensure long-term reagent integrity.

Is 5-Bromo-1,1,1-trifluoropentane suitable for use in pharmaceutical intermediate synthesis?

Yes, the compound is widely used as a fluorinated building block in medicinal chemistry. The trifluoromethyl-terminated alkyl chain it introduces can improve membrane permeability and metabolic stability of drug candidates. Researchers should verify lot purity via the certificate of analysis before use in regulated synthetic workflows.

References

  1. O'Hagan, D. Understanding organofluorine chemistry. An introduction to the C–F bond. Chemical Society Reviews, 2008, 37, 308–319. doi:10.1039/b711844a
  2. Hagmann, W. K. The many roles for fluorine in medicinal chemistry. Journal of Medicinal Chemistry, 2008, 51(15), 4359–4369. doi:10.1021/jm800219f
  3. Aladdin Scientific. Product page: 5-Bromo-1,1,1-trifluoropentane, SKU B698162. Aladdin Scientific website.

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.《5-Bromo-1,1,1-trifluoropentane: Properties, Uses & Handling》. 阿拉丁知识库,更新于 2026年9月23日。 https://www.aladdin-e.com/zh_cn/faqs/5-bromo-1-1-1-trifluoropentane-properties-uses-handling-en.html
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