1-Butyl-3-methylimidazolium Tetrafluoroborate TCI B2195

Chemical Identity

Other names: BMIMBF4
CAS No.: 174501-65-6
PubChem: CID 2734178·SID 87565055
Formula: C8H15BF4N2
Molecular weight: 226.03 g/mol
Purity: >98.0%(HPLC)(qN
Reference databases: ChemSpider·ECHA

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: 1-butyl-3-methylimidazol-3-ium tetrafluoroborate
SMILES: [B-](F)(F)(F)F.CCCCN1C=C[N+](=C1)C
InChIKey: LSBXQLQATZTAPE-UHFFFAOYSA-N

Rp 1.060.500,00

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1-Butyl-3-methylimidazolium Tetrafluoroborate is an ionic liquid widely used in various chemical reactions and synthesis processes. As a unique type of solvent, it plays a critical role in modern laboratory research by offering stability and versatility in chemical environments. Its non-volatile nature makes it ideal for applications where maintaining consistent reaction conditions is essential. This material is commonly found in laboratories worldwide, supporting a broad range of chemical investigations and industrial applications.

The properties of 1-Butyl-3-methylimidazolium Tetrafluoroborate make it a preferred choice for researchers. It exhibits thermal stability and resistance to degradation, ensuring long-term performance in chemical processes. Additionally, it is anhydrous, making it suitable for reactions that are sensitive to moisture. Its ability to dissolve both organic and inorganic compounds enhances its utility as a reaction medium or solvent. These characteristics contribute to its growing popularity in both academic and industrial research settings.

In Indonesian laboratories, 1-Butyl-3-methylimidazolium Tetrafluoroborate is commonly used in organic synthesis, catalytic processes, and material research. Its availability and high quality make it a favored option for scientists and students in educational and research institutions. The material supports a wide range of experimental applications, contributing to the advancement of chemical studies in the region.

Advantages (TCI brochure)

Diels-Alder: similar reactivity to Lewis basic emimCl/(AlCl3)X for cyclopentadiene and methyl acrylate
Heck reaction of vinyl ethers with aryl halides gives only alpha-substituents specifically
Suzuki-Miyaura: product extracted with ether while catalyst and ionic liquid are retained and reused
Wittig: product and triphenylphosphine oxide separated by ether and toluene extraction
Reduction of benzaldehyde with tributylborane gives 93% yield at 100 °C, 16 h

TCI brochures (PDF)

Ionic Liquids for Battery Research 2026-04-13 · p. 1
Ionic Liquids 2026-06-08 · p. 7
Solar Cell Materials 2026-04-21 · p. 10
Boron Compounds 2025-10-07 · p. 24

Related TCI products

Organic synthesis where stable and non-volatile solvents are required for complex reaction systems.
Catalytic reactions that benefit from the unique solvation properties of ionic liquids.
Material research involving the preparation of new polymers and nanomaterials.
Analytical chemistry applications requiring anhydrous and inert environments.
Green chemistry initiatives aiming to reduce volatile organic compound emissions.

From the TCI brochure

Diels-Alder reaction
Heck reaction
Aldol condensation
Suzuki-Miyaura coupling
Wittig reaction
Stille reaction
Friedel-Crafts benzoylation
Asymmetric hydrogenation in two-phase system with alcohol
Reduction of aldehydes with trialkylboranes
Electrophilic fluorination of indoles
Ring opening of epoxides with amines
Enzymatic (lipase) transesterification

Brand	TCI
CAS number	174501-65-6
Molecular formula	—
Purity	—
Category	Chemistry > Specialty Synthesis > Ionic Liquids
Pack sizes	Available in various quantities as per supplier specifications
Physical form	Liquid
Storage	Store in a cool, dry place away from direct sunlight

Data from the TCI brochure

Y (%) Diels-Alder (endo + exo)	91 (cyclopentadiene + methyl acrylate, r.t., 72 h)
Y (%) Heck, vinyl ether (entry 4)	95 (Pd(OAc)2 (2.5 mol%), DPPP (2 eq.), Et3N, 100 °C, 24 h)
Y (%) Wittig, 1st use	82 (Ph3P=CH-C(=O)Me + PhCHO, 60 °C, 2.5 h)
Y (%) Suzuki-Miyaura, 1st use	81 (Pd(PPh3)4 (cat.), Na2CO3 aq., 110 °C, 10 min)
Y (%) reduction of benzaldehyde by Bu3B	93 (Bu3B 1 eq., 100 °C, 16 h)
ee (%) asymmetric hydrogenation, 1st use	78 (S) (H2 50 atm, [RuCl2-(S)-BINAP]2·NEt3 (cat.), iPrOH-bmimBF4, r.t., 20 h)

Source: TCI brochure R5058 (2026-06-08)

This ionic liquid should be stored in a cool, dry place, away from direct sunlight and sources of heat. It is recommended to use airtight, non-reactive containers such as glass or high-density polyethylene to prevent contamination and evaporation. Due to its non-volatile nature, it does not require refrigeration but should be kept in a controlled environment. Laboratory personnel should wear appropriate personal protective equipment when handling this material to ensure safety. Regular monitoring of storage conditions is advised to maintain its chemical integrity and ensure safe usage in experimental settings.

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