Benzyltriphenylphosphonium bromide, 98%, Thermo Scientific Chemicals
Benzyltriphenylphosphonium bromide, 98%, Thermo Scientific Chemicals
Thermo Scientific Chemicals

Benzyltriphenylphosphonium bromide, 98%, Thermo Scientific Chemicals

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Catalog number B24567.09
also known as B24567-09
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25.80
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Quantity:
10 g
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Benzyltriphenylphosphonium bromide, 98%, Thermo Scientific Chemicals
Catalog numberB24567.09
Price (USD)/ Each
25.80
-
Add to cart
Chemical Identifiers
CAS1449-46-3
IUPAC Namebenzyltriphenylphosphanium bromide
Molecular FormulaC25H22BrP
InChI KeyWTEPWWCRWNCUNA-UHFFFAOYSA-M
SMILES[Br-].C(C1=CC=CC=C1)[P+](C1=CC=CC=C1)(C1=CC=CC=C1)C1=CC=CC=C1
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SpecificationsSpecification SheetSpecification Sheet
FormCrystals or powder or crystalline powder
Assay (Titration ex Bromide)≥97.5% to ≤102.5%
Identification (FTIR)Conforms
Water Content (Karl Fischer Titration)≤2.0%
Melting Point (clear melt)291-299°C
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Benzyltriphenylphosphonium bromide is used as a reactant for stereoselective azidolysis of vinyl epoxides, enantioselective aziridination and Friedel-Crafts cyclization for asymmetric synthesis of dihydrexidine, biomimetic iron(III) mediated oxidative dimerization for synthesis of benzoquinone parvistemin A, enantioselective synthesis of syn-diarylheptanoids from D-glucose, preparation of β-amyloid plaque ligands and decarboxylative cyclopropanation. It react with 4-methyl-oxetan-2-one to produce 4-hydroxy-1-phenyl-1-(triphenyl-l5-phosphanylidene)-pentan-2-one.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Benzyltriphenylphosphonium bromide is used as a reactant for stereoselective azidolysis of vinyl epoxides, enantioselective aziridination and Friedel-Crafts cyclization for asymmetric synthesis of dihydrexidine, biomimetic iron(III) mediated oxidative dimerization for synthesis of benzoquinone parvistemin A, enantioselective synthesis of syn-diarylheptanoids from D-glucose, preparation of β-amyloid plaque ligands and decarboxylative cyclopropanation. It react with 4-methyl-oxetan-2-one to produce 4-hydroxy-1-phenyl-1-(triphenyl-l5-phosphanylidene)-pentan-2-one.

Solubility
Soluble in water.

Notes
Keep container tightly sealed. Store in cool, dry conditions in well sealed containers. Incompatible with oxidizing agents.
RUO – Research Use Only

General References:

  1. Saumen Hajra, Sukanta Bar. Catalytic enantioselective synthesis of A-86929, a dopamine D1 agonist. Chemical Communications. 2011, 47 (13), 3981-3982.
  2. Marcus J Smith, Christopher C Nawrat, Christopher J Moody. Synthesis of parvistemin A via biomimetic oxidative dimerization. Organic Letters. 2011, 13 (13), 3396-3398.
  3. Wittig reaction of benzylic phosphonium salts with aromatic aldehydes using solid KOH + 18-crown-6 leads to (Z)-stilbenes with good stereoselectivity: Tetrahedron Lett., 37, 4225 (1996). See Appendix 1.