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CAS RN: 7789-60-8 | Product Number: P1743
Phosphorus Tribromide
×
Purity: >98.0%(T)
Synonyms:
- Phosphorus(III) Bromide
Product Documents:
| Size | Unit Price | Belgium | Japan* | Quantity |
Shipping Information
|
|---|---|---|---|---|---|
| 300G |
€42.00
|
≥80 | ≥100 |
|
* Stock available in Belgium: Shipment on the same day
* Stock available in Japan: Please check the Shipping Simulation for estimated shipments. (excludes regulated items and dry ice shipments)
| Product Number | P1743 |
Purity / Analysis Method 
|
>98.0%(T) |
| Molecular Formula / Molecular Weight | PBr__3 = 270.69 |
| Physical State (20 deg.C) | Liquid |
| Storage Temperature
|
Room Temperature (Recommended in a cool and dark place, <15°C) |
| Store Under Inert Gas | Store under inert gas |
| Condition to Avoid | Moisture Sensitive |
| CAS RN | 7789-60-8 |
| Reaxys Registry Number | 3903060 |
| Merck Index (14) | 7357 |
| MDL Number | MFCD00011436 |
Specifications
| Appearance | Colorless to Light orange to Yellow clear liquid to cloudy liquid |
| Purity(Volhard Method) | min. 98.0 % |
Properties (reference)
| Melting Point | -42 °C |
| Boiling Point | 173 °C |
| Specific Gravity (20/20) | 2.85 |
| Refractive Index | 1.70 |
| Solubility (soluble in) | Ether, Acetone, Chloroform |
GHS
| Pictogram |
|
| Signal Word | Danger |
| Hazard Statements | H314 : Causes severe skin burns and eye damage. H335 : May cause respiratory irritation. |
| Precautionary Statements | P261 : Avoid breathing mist or vapours. P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection. P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water. P301 + P330 + P331 : IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P304 + P340 + P310 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor. P305 + P351 + P338 + P310 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/doctor. |
Related Laws:
| EC Number | 232-178-2 |
| RTECS# | TH4460000 |
Transport Information:
| UN Number | UN1808 |
| Class | 8 |
| Packing Group | II |
| HS Number | 2812900090 |
Application
TCI Practical Example: Bromination Using Phosphorus Tribromide.
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Used Chemicals
-
- Phosphorus Tribromide [P1743]
- 1-(4,5-Dimethoxy-2-nitrophenyl)ethanol
- Dichloromethane
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Procedure
-
Phosphorus tribromide (1.63 g, 6.03 mmol) was added dropwise to a solution of 1-(4,5-dimethoxy-2-nitrophenyl)ethanol (1.10 g, 4.83 mmol) in dichloromethane (24 mL) at 0 °C. The mixture was stirred for 3 hours. To the solution was added saturated sodium hydrogen carbonate aqueous solution (18 mL) and washed with water (10 mL, 2 times), dried over sodium sulfate and filtered. The solvent was removed under reduced pressure. The residue was purified by column chromatography (on silica gel, ethyl acetate:hexane = 1:10) to give 1 (952 mg, 68% yield) as a yellow oil.
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Experimenter’s Comments
-
The reaction mixture was monitored by TLC (hexanes:ethyl acetate = 1:1, Rf = 0.71) and UPLC.
Compound 1 was treated under light shielding throughout the entire process because of its possible photodegradability.
When the sample for NMR of 1 was left under fluorescent light, the color of the solution changed from yellow to dark blue.
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Analytical Data
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Compound 1
1H NMR (400 MHz, CDCl3); δ 7.46 (s, 1H), 7.28 (s, 1H), 6.04 (q, J = 5.4 Hz, 1H), 4.02 (s, 3H), 3.95 (s, 3H), 2.07 (d, J = 5.4 Hz, 3H).
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Lead Reference
-
- Photolabile Protecting Groups for Nitroxide Spin Labels
PubMed Literature
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