Potassium octyltrifluoroborate
Potassium octyltrifluoroborate (CAS: 329976-79-6; Formula: C8H17BF3K; MW: 220.13) is a versatile organoboron compound. This trifluoroborate salt serves as a key reactant in various synthetic organic chemistry applications. It is particularly valuable for the preparation of boronic acids and esters via hydrolysis, and widely employed in Suzuki-Miyaura cross-coupling reactions, including those with alkenyl bromides. It also participates in hydrodeboration processes, offering diverse synthetic utility.
- IUPAC
- Potassium oct-1-yltrifluoroborate,Potassium octane-1-trifluoroborate

Preparation of Boronic Acids and Esters
Potassium octyltrifluoroborate can be hydrolysed using silica gel and water. This process effectively converts the trifluoroborate into the corresponding boronic acid or ester, which are fundamental building blocks in organic synthesis.
Suzuki-Miyaura Cross-Coupling Reactions
This compound is a reliable reagent for Suzuki-Miyaura cross-coupling reactions. It facilitates the formation of carbon-carbon bonds, a critical transformation in the synthesis of complex organic molecules.
Palladium-Catalyzed Cross-Coupling
It is employed in palladium-catalyzed cross-coupling reactions, specifically with alkenyl bromides. This enables the efficient synthesis of substituted alkenes and related structures.
Hydrodeboration Reactions
Potassium octyltrifluoroborate can undergo hydrodeboration reactions. This transformation provides a method for removing boron-containing groups and introducing hydrogen atoms into organic frameworks.
| Molecular weight | 220.13 |
|---|---|
| Empirical formula | C8H17BF3K |
| Application | Reactant for:• Hydrolysis with silica gel and water for preparation of boronic acids and esters1• Suzuki-Miyaura cross-coupling2• Palladium-catalyzed Suzuki-Miyaura-type cross-coupling reaction with alkenyl bromides3• Hydrodeboration reactions4 |
| Melting point | 74-78 °C |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Transport (UN / ADR) | UN 3261 8 / PGII |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Potassium octyltrifluoroborate used for?
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Potassium octyltrifluoroborate is used as a reactant in organic synthesis, notably for preparing boronic acids and esters, and in Suzuki-Miyaura cross-coupling reactions.
What is the CAS number and chemical formula for Potassium octyltrifluoroborate?
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The CAS number is 329976-79-6, and the chemical formula is C8H17BF3K.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Potassium octyltrifluoroborate in a technical/research grade. We do not represent this product as USP, BP, EP, or for use in food, nutraceutical, or pharmaceutical applications.
What are the safety considerations for handling Potassium octyltrifluoroborate?
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Potassium octyltrifluoroborate is classified as Danger, with hazard statement H314 (Causes severe skin burns and eye damage). Handle with appropriate personal protective equipment (gloves, eye protection) in a well-ventilated area. Refer to the Safety Data Sheet for full handling instructions.
How is Potassium octyltrifluoroborate packed and exported?
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This product is shipped under UN 3261, Class 8, Packing Group II. It is exported globally by Tech Serve Solutions, a specialist supplier since 1998.
How can I request a quote or sample?
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To request a quote or sample of Potassium octyltrifluoroborate, please contact the Tech Serve Solutions sales team through our website or listed contact details.
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