Benzyltriphenylphosphonium bromide
Benzyltriphenylphosphonium bromide Basic information
- Product Name:
- Benzyltriphenylphosphonium bromide
- Synonyms:
-
- Phosphonium,triphenyl(phenylmethyl)-,bromide
- benzyl trphenyl phosphonium bromide
- Benzytriphenyl Phosphonium Bromide
- Benzyltriphenylphosphanium bromid
- Triphenylbenzylphosphonium·bromide
- triphenyl-(phenylmethyl)phosphonium bromide
- Benzyl Triphenyl Phosphonium Bromide ( Btppb )
- Benzyltriphenylphosphonium bromide,97%
- CAS:
- 1449-46-3
- MF:
- C25H22BrP
- MW:
- 433.32
- EINECS:
- 215-908-4
- Product Categories:
-
- Phosphonium Compounds
- Synthetic Organic Chemistry
- Wittig & Horner-Emmons Reaction
- Wittig Reaction
- C-C Bond Formation
- Olefination
- Pharmaceutical Intermediates
- Wittig Reagents
- Mol File:
- 1449-46-3.mol
Benzyltriphenylphosphonium bromide Chemical Properties
- Melting point:
- 295-298 °C(lit.)
- storage temp.
- Inert atmosphere,Room Temperature
- form
- solid
- color
- White to Almost white
- Water Solubility
- Soluble in water.
- Sensitive
- Hygroscopic
- BRN
- 3599867
- CAS DataBase Reference
- 1449-46-3(CAS DataBase Reference)
Safety Information
- Hazard Codes
- Xi
- Risk Statements
- 36/37/38
- Safety Statements
- 26-36/37/39
- WGK Germany
- 3
- HazardClass
- 6.1
- PackingGroup
- III
- HS Code
- 29319090
MSDS
- Language:English Provider:Benzyltriphenylphosphonium bromide
- Language:English Provider:SigmaAldrich
- Language:English Provider:ACROS
- Language:English Provider:ALFA
Benzyltriphenylphosphonium bromide Usage And Synthesis
Preparation
Benzyl triphenylphosphonium bromide is prepared by the following steps:To a solution of Ph3P (22 g, 0.084 mol) in toluene, BnBr (10 ml, 0.084 mol) was added dropwise with ice-cooling and stirred at room temperature for 2 hours. A solid was formed, which was filtered and washed with toluene and then dry pet ether to remove unreacted Ph3P. The salt was dried under vacuum (35 g, 96% yield).
Chemical Properties
WHITE CRYSTALLINE POWDER
Uses
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.
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Benzyltriphenylphosphonium bromide(1449-46-3)Related Product Information
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