(Z)-1-tert-Butyl-2,3,6,7-tetrahydro-1H-phosphepinium tetrafluoroborate
(Z)-1-tert-Butyl-2,3,6,7-tetrahydro-1H-phosphepinium tetrafluoroborate (CAS: 1011736-00-7) is an organophosphorus compound with the molecular formula C6H10P(+)H(C4H9) BF4(-) and a molecular weight of 258.04 g/mol. This phosphepinium salt is primarily utilised as a ligand in catalysis and for general chemical synthesis, particularly in organometallic chemistry. Its structure lends itself to specific catalytic applications.
- IUPAC
- 1-(1,1-Dimethylethyl)-2,3,6,7-tetrahydro-1H-phosphepin tetrafluoroborate,Ellman ligand
- Synonyms
- 1-(1,1-Dimethylethyl)-2,3,6,7-tetrahydro-1H-phosphepin tetrafluoroborate,Ellman ligand,7-tetrahydro-1H-phosphepinium tetrafluoroborate,1011736-00-7, C6H10P(+)H(C4H9) BF4(-)

Catalysis
This compound serves as a valuable phosphine ligand in various catalytic processes. Its unique structural features can influence the selectivity and activity of metal catalysts in organic transformations.
Chemical Synthesis
It is employed as a reagent or building block in the synthesis of complex organic molecules. Its application extends to research laboratories focusing on novel chemical development.
Organometallic Chemistry
The phosphepinium cation can coordinate with metal centres, making it useful in the study and application of organometallic complexes.
| Molecular weight | 258.04 |
|---|---|
| Linear formula | C6H10P(+)H(C4H9) BF4(-) |
| Melting point | 243-264 °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
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 1759 8 / PGIII |
| 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 (Z)-1-tert-Butyl-2,3,6,7-tetrahydro-1H-phosphepinium tetrafluoroborate used for?
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This compound is primarily used as a ligand in catalysis and for general chemical synthesis, particularly in organometallic chemistry.
What is the CAS number and formula for this chemical?
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The CAS number is 1011736-00-7 and the formula is C6H10P(+)H(C4H9) BF4(-).
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical for research and laboratory use. The specific grade and purity are detailed in the product specifications. TSS does not represent this product as USP, BP, or EP grade.
How should (Z)-1-tert-Butyl-2,3,6,7-tetrahydro-1H-phosphepinium tetrafluoroborate be handled?
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This compound is classified as Danger, with hazard statement H314 (Causes severe skin burns and eye damage). Appropriate personal protective equipment including eyeshields, face shields, and chemical-resistant gloves must be worn. Always consult the Safety Data Sheet (SDS) before handling.
Is this product available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, pharmaceutical intermediates, and laboratory reagents.
How can I request a quote or sample?
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Please contact our sales team through the website or by phone to request a quote or a sample of this product.
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