40817-03-6
p-Xylenebis(triphenylphosphonium bromide)
CAS: 40817-03-6;10273-74-2
Molecular Formula: C44H38Br2P2
40817-03-6 - Names and Identifiers
| Name | p-Xylenebis(triphenylphosphonium bromide) |
| Synonyms | PARA-XYLYLENEBIS-(TRIPHENYLPHOSPHONIUM p-Xylenebis(triphenylphosphonium bromide) p-xylenebis(triphenylphosphonium) dibromide p-Xylylenebis(triphenylphosphonium bromide) xylenylenebis(triphenylphosphonium) bromide (p-Xylylene)bis(triphenylphosphonium)·dibromide para-xylylenebis-(triphenylphosphonium bromide), 1,4-Bis[(triphenylphosphonio)methyl]benzene dibromide (benzene-1,3-diyldimethanediyl)bis(triphenylphosphonium) (1,4-Phenylenebis(Methylene))bis(triphenylphosphoniuM) broMide [1,4-phenylenebis(methylene)]bis[triphenylphosphonium] dibromide (benzene-1,4-diyldimethanediyl)bis(triphenylphosphonium) dibromide |
| CAS | 40817-03-6 10273-74-2 |
| EINECS | 255-092-7 |
| InChI | InChI=1/C44H38P2.2BrH/c1-7-19-39(20-8-1)45(40-21-9-2-10-22-40,41-23-11-3-12-24-41)35-37-31-33-38(34-32-37)36-46(42-25-13-4-14-26-42,43-27-15-5-16-28-43)44-29-17-6-18-30-44;;/h1-34H,35-36H2;2*1H/q+2;;/p-2 |
40817-03-6 - Physico-chemical Properties
| Molecular Formula | C44H38Br2P2 |
| Molar Mass | 788.528042 |
| Melting Point | >300°C(lit.) |
| Water Solubility | Slightly soluble in water. |
| Appearance | Crystalline powder |
| BRN | 3584592 |
| Storage Condition | under inert gas (nitrogen or Argon) at 2-8°C |
| Sensitive | Hygroscopic |
| MDL | MFCD00011914 |
40817-03-6 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection |
| UN IDs | 3278 |
| WGK Germany | 3 |
40817-03-6 - Introduction
p-Xylenebis(triphenylphosphonium bromide) is an organic compound with the chemical formula C26H24Br2P2, often abbreviated as XPPh3Br2, where X is the para group.
The compound is a white solid, soluble in ethers and organic solvents. Its melting point is about 140-145 degrees Celsius. It has strong electrophilicity and can be used as an electrophilic reagent in organic synthesis.
p-Xylenebis(triphenylphosphonium bromide) is widely used in organic synthesis. Due to its electrophilicity, it can be used for allylation, electrophilic substitution reactions on olefins, etc. It can also be used as an electron catalyst for radical substitution reactions and chlorination reactions.
p-Xylenebis(triphenylphosphonium bromide) can be prepared by reacting para-toluene with an excess of triphenylphosphine and bromine. Under reaction conditions, the reactants are typically carried out under an inert atmosphere and stirred at low temperature for several hours. The reaction product can be obtained in pure form by recrystallization of crystals.
From a safety point of view, p-Xylenebis(triphenylphosphonium bromide) do not cause obvious hazards under normal circumstances. However, it is a flammable substance and should be kept away from open flames and high temperatures. During use, care should be taken to avoid inhalation of its dust and contact with the skin. Avoid contact with oxidizing agents and acid substances to prevent the production of hazardous substances. During handling and storage, chemical safety practices should be followed. When disposing of waste, please handle it correctly in accordance with relevant laws and regulations.
The compound is a white solid, soluble in ethers and organic solvents. Its melting point is about 140-145 degrees Celsius. It has strong electrophilicity and can be used as an electrophilic reagent in organic synthesis.
p-Xylenebis(triphenylphosphonium bromide) is widely used in organic synthesis. Due to its electrophilicity, it can be used for allylation, electrophilic substitution reactions on olefins, etc. It can also be used as an electron catalyst for radical substitution reactions and chlorination reactions.
p-Xylenebis(triphenylphosphonium bromide) can be prepared by reacting para-toluene with an excess of triphenylphosphine and bromine. Under reaction conditions, the reactants are typically carried out under an inert atmosphere and stirred at low temperature for several hours. The reaction product can be obtained in pure form by recrystallization of crystals.
From a safety point of view, p-Xylenebis(triphenylphosphonium bromide) do not cause obvious hazards under normal circumstances. However, it is a flammable substance and should be kept away from open flames and high temperatures. During use, care should be taken to avoid inhalation of its dust and contact with the skin. Avoid contact with oxidizing agents and acid substances to prevent the production of hazardous substances. During handling and storage, chemical safety practices should be followed. When disposing of waste, please handle it correctly in accordance with relevant laws and regulations.
Last Update：2024-04-10 22:29:15
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View History
40817-03-6
1-methyl-2-Piperidineacetamide
139115-91-6
L-Lysineaspartate
13947-96-1
methyltriphenylphosphonium iodide
Moxifloxacin
H-AMEPO-(OH)2
1254353-37-1
N-甲基二乙胺
1-methyl-2-Piperidineacetamide
139115-91-6
L-Lysineaspartate
13947-96-1
methyltriphenylphosphonium iodide
Moxifloxacin
H-AMEPO-(OH)2
1254353-37-1
N-甲基二乙胺