Triphenylphosphine dibromide
Triphenylphosphine dibromide (CAS 1034-39-5) with the linear formula (C 6 H 5 )3 PBr 2 is a chemical compound with a molecular weight of 422.09 g/mol. It is primarily recognised as a brominating reagent. This compound is effectively employed in organic synthesis for the preparation of alkyl and aryl bromides from corresponding alcohols and phenols, crucially without inducing molecular rearrangement during the process.
- IUPAC
- Bromotriphenylphosphonium bromide,Dibromotriphenylphosphorane
- Synonyms
- Bromotriphenylphosphonium bromideDibromotriphenylphosphorane
Preparation of Alkyl Bromides
Triphenylphosphine dibromide serves as a reagent for converting alcohols into alkyl bromides. This reaction proceeds efficiently, yielding the desired bromide products without skeletal rearrangements.
Synthesis of Aryl Bromides
This compound is utilised in the synthesis of aryl bromides from phenols. The method offers a reliable route to these important intermediates in organic chemistry.
Reagent in Chemical Synthesis
As a synthetic reagent, triphenylphosphine dibromide is valuable for introducing bromine atoms into organic molecules, facilitating C-X bond formation in various synthetic pathways.
| Molecular weight | 422.09 |
|---|---|
| Linear formula | (C6H5)3PBr2 |
| Assay | 96% |
| Application | Reagent used in the preparation of alkyl and aryl bromides from alcohols1,2 and phenols3 without rearrangement. |
| Melting point | 235 °C (dec.)(lit.) |
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 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 Triphenylphosphine dibromide used for?
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Triphenylphosphine dibromide is used as a reagent in organic synthesis for preparing alkyl and aryl bromides from alcohols and phenols, respectively, without causing molecular rearrangement.
What is the CAS number and formula for Triphenylphosphine dibromide?
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The CAS number for Triphenylphosphine dibromide is 1034-39-5, and its linear formula is (C 6 H 5 )3 PBr 2 .
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Triphenylphosphine dibromide with an assay of 96%. We do not represent this product as USP, BP, or EP grade.
How should Triphenylphosphine dibromide be handled safely?
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Triphenylphosphine dibromide is classified as Danger with hazard statement H314 (Causes severe skin burns and eye damage). Appropriate personal protective equipment including eyeshields, faceshields, gloves, and suitable respiratory protection must be used. Handle in a well-ventilated area. Refer to the Safety Data Sheet for comprehensive handling instructions.
How is Triphenylphosphine dibromide typically packed and shipped?
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Triphenylphosphine dibromide is shipped as UN 3261, Class 8, Packing Group II, in compliance with transport regulations. Specific packaging details are available upon request.
How can I request a quote or sample for Triphenylphosphine dibromide?
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To request a quote or sample of Triphenylphosphine dibromide, please contact our sales team through the website or by phone, providing your specific requirements.
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