Triisopropylphosphonium tetrafluoroborate
Triisopropylphosphonium tetrafluoroborate (CAS: 121099-07-8), with the empirical formula C9H22BF4P, is a chemical compound utilised primarily as a reactant in advanced chemical synthesis. It plays a role in the formation of specific organometallic complexes, including triisopropylphosphine complexes of ruthenium(II), and is involved in catalytic processes such as imine hydrogenation. Its applications extend to the synthesis of dihydride and alkene-η6-arene complexes, making it a valuable reagent in catalysis and inorganic chemistry research.
- IUPAC
- Tris(1-methylethyl)phosphine tetrafluoroborate
- Synonyms
- Tris(1-methylethyl)phosphine tetrafluoroborate

Synthesis of Organometallic Complexes
This compound serves as a key reactant for synthesising specific triisopropylphosphine complexes of ruthenium(II), contributing to the development of novel catalytic systems.
Imine Hydrogenation Catalysis
It is employed as a reactant in processes involving the hydrogenation of imines, a crucial step in the synthesis of various amine compounds.
Complexes with Dihydrides and Arene Ligands
Triisopropylphosphonium tetrafluoroborate is utilised in the preparation of dihydride and alkene-η6-arene complexes, expanding its utility in inorganic synthesis.
| Empirical formula | C9H22BF4P |
|---|---|
| Assay | 97% |
| Application | Reactant for:• Synthesis of triisopropylphosphine complexes of ruthenium(II)1• Imine hydrogenation2• Dihydride and alkene-η6-arene complexes3 |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26 |
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 Triisopropylphosphonium tetrafluoroborate used for?
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Triisopropylphosphonium tetrafluoroborate is used as a reactant in chemical synthesis, notably for the preparation of triisopropylphosphine complexes of ruthenium(II), imine hydrogenation, and the synthesis of dihydride and alkene-η6-arene complexes.
What are the CAS number and formula for Triisopropylphosphonium tetrafluoroborate?
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The CAS number is 121099-07-8 and the empirical formula is C9H22BF4P.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Triisopropylphosphonium tetrafluoroborate with an assay of 97%. This product is supplied for research and laboratory use and is not represented as USP, BP, EP, or any other pharmacopoeia grade.
How should Triisopropylphosphonium tetrafluoroborate be handled?
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Handling requires a dust mask type N95 (US), eyeshields, and gloves. Avoid breathing dust. In case of contact with eyes, rinse cautiously with water for several minutes and seek medical advice. If inhaled, move the person to fresh air and keep them at rest.
Is Triisopropylphosphonium tetrafluoroborate a controlled substance?
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This compound is not listed as a controlled substance in the provided data.
How is this chemical packed and exported?
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Tech Serve Solutions, as a global supplier and exporter, ensures appropriate packaging for safe transport and compliance with international shipping regulations.
How can I request a sample or quote?
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To request a sample or a quotation for Triisopropylphosphonium tetrafluoroborate, please contact our sales department through the website or by phone.
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